diff --git a/Source/Editor/Managed/ManagedEditor.Internal.cpp b/Source/Editor/Managed/ManagedEditor.Internal.cpp
index 4e3f5f1f1..4f0370b44 100644
--- a/Source/Editor/Managed/ManagedEditor.Internal.cpp
+++ b/Source/Editor/Managed/ManagedEditor.Internal.cpp
@@ -37,6 +37,7 @@
 #include "Engine/Utilities/Encryption.h"
 #include "Engine/Navigation/Navigation.h"
 #include "Engine/Particles/ParticleEmitter.h"
+#include "Engine/Profiler/ProfilerCPU.h"
 #include "Engine/Input/Input.h"
 #include "Engine/Input/Mouse.h"
 #include "Engine/Input/Keyboard.h"
@@ -1007,11 +1008,16 @@ public:
 
     static void DeserializeSceneObject(SceneObject* sceneObject, MonoString* jsonObj)
     {
+        PROFILE_CPU_NAMED("DeserializeSceneObject");
+
         StringAnsi json;
         MUtils::ToString(jsonObj, json);
 
         rapidjson_flax::Document document;
-        document.Parse(json.Get(), json.Length());
+        {
+            PROFILE_CPU_NAMED("Json.Parse");
+            document.Parse(json.Get(), json.Length());
+        }
         if (document.HasParseError())
         {
             Log::JsonParseException(document.GetParseError(), document.GetErrorOffset());
@@ -1022,7 +1028,10 @@ public:
         modifier->EngineBuild = FLAXENGINE_VERSION_BUILD;
         Scripting::ObjectsLookupIdMapping.Set(&modifier.Value->IdsMapping);
 
-        sceneObject->Deserialize(document, modifier.Value);
+        {
+            PROFILE_CPU_NAMED("Deserialize");
+            sceneObject->Deserialize(document, modifier.Value);
+        }
     }
 
     static void LoadAsset(Guid* id)
diff --git a/Source/Editor/Modules/SceneModule.cs b/Source/Editor/Modules/SceneModule.cs
index 0b4206526..33d41ddd6 100644
--- a/Source/Editor/Modules/SceneModule.cs
+++ b/Source/Editor/Modules/SceneModule.cs
@@ -371,12 +371,14 @@ namespace FlaxEditor.Modules
         /// <param name="fullCleanup">True if cleanup all data (including serialized and cached data). Otherwise will just clear living references to the scene objects.</param>
         public void ClearRefsToSceneObjects(bool fullCleanup = false)
         {
+            Profiler.BeginEvent("SceneModule.ClearRefsToSceneObjects");
             Editor.SceneEditing.Deselect();
 
             if (fullCleanup)
             {
                 Undo.Clear();
             }
+            Profiler.EndEvent();
         }
 
         private void OnSceneLoaded(Scene scene, Guid sceneId)
diff --git a/Source/Editor/States/PlayingState.cs b/Source/Editor/States/PlayingState.cs
index 6b946b23e..171022745 100644
--- a/Source/Editor/States/PlayingState.cs
+++ b/Source/Editor/States/PlayingState.cs
@@ -87,15 +87,18 @@ namespace FlaxEditor.States
 
         private void CacheSelection()
         {
+            Profiler.BeginEvent("PlayingState.CacheSelection");
             _selectedObjects.Clear();
             for (int i = 0; i < Editor.SceneEditing.Selection.Count; i++)
             {
                 _selectedObjects.Add(Editor.SceneEditing.Selection[i].ID);
             }
+            Profiler.EndEvent();
         }
 
         private void RestoreSelection()
         {
+            Profiler.BeginEvent("PlayingState.RestoreSelection");
             var count = Editor.SceneEditing.Selection.Count;
             Editor.SceneEditing.Selection.Clear();
             for (int i = 0; i < _selectedObjects.Count; i++)
@@ -106,6 +109,7 @@ namespace FlaxEditor.States
             }
             if (Editor.SceneEditing.Selection.Count != count)
                 Editor.SceneEditing.OnSelectionChanged();
+            Profiler.EndEvent();
         }
 
         /// <inheritdoc />
@@ -114,6 +118,7 @@ namespace FlaxEditor.States
         /// <inheritdoc />
         public override void OnEnter()
         {
+            Profiler.BeginEvent("PlayingState.OnEnter");
             Editor.OnPlayBeginning();
 
             CacheSelection();
@@ -137,6 +142,7 @@ namespace FlaxEditor.States
             RestoreSelection();
 
             Editor.OnPlayBegin();
+            Profiler.EndEvent();
         }
 
         private void SetupEditorEnvOptions()
@@ -156,6 +162,7 @@ namespace FlaxEditor.States
         /// <inheritdoc />
         public override void OnExit(State nextState)
         {
+            Profiler.BeginEvent("PlayingState.OnExit");
             IsPaused = true;
 
             // Remove references to the scene objects
@@ -178,6 +185,7 @@ namespace FlaxEditor.States
             RestoreSelection();
 
             Editor.OnPlayEnd();
+            Profiler.EndEvent();
         }
     }
 }
diff --git a/Source/Editor/Utilities/DuplicateScenes.cs b/Source/Editor/Utilities/DuplicateScenes.cs
index bff0b6714..aaed7fff7 100644
--- a/Source/Editor/Utilities/DuplicateScenes.cs
+++ b/Source/Editor/Utilities/DuplicateScenes.cs
@@ -37,6 +37,7 @@ namespace FlaxEditor.Utilities
         {
             if (HasData)
                 throw new InvalidOperationException("DuplicateScenes has already gathered scene data.");
+            Profiler.BeginEvent("DuplicateScenes.GatherSceneData");
 
             Editor.Log("Collecting scene data");
 
@@ -44,7 +45,10 @@ namespace FlaxEditor.Utilities
             var scenes = Level.Scenes;
             int scenesCount = scenes.Length;
             if (scenesCount == 0)
+            {
+                Profiler.EndEvent();
                 throw new InvalidOperationException("Cannot gather scene data. No scene loaded.");
+            }
             var sceneIds = new Guid[scenesCount];
             for (int i = 0; i < scenesCount; i++)
             {
@@ -66,17 +70,24 @@ namespace FlaxEditor.Utilities
 
             // Delete old scenes
             if (Level.UnloadAllScenes())
+            {
+                Profiler.EndEvent();
                 throw new FlaxException("Failed to unload scenes.");
+            }
             FlaxEngine.Scripting.FlushRemovedObjects();
 
             // Ensure that old scenes has been unregistered
             {
                 var noScenes = Level.Scenes;
                 if (noScenes != null && noScenes.Length != 0)
+                {
+                    Profiler.EndEvent();
                     throw new FlaxException("Failed to unload scenes.");
+                }
             }
 
             Editor.Log(string.Format("Gathered {0} scene(s)!", scenesCount));
+            Profiler.EndEvent();
         }
 
         /// <summary>
@@ -86,6 +97,7 @@ namespace FlaxEditor.Utilities
         {
             if (!HasData)
                 throw new InvalidOperationException("DuplicateScenes has not gathered scene data yet.");
+            Profiler.BeginEvent("DuplicateScenes.CreateScenes");
 
             Editor.Log("Creating scenes");
 
@@ -96,8 +108,13 @@ namespace FlaxEditor.Utilities
                 var data = _scenesData[i];
                 var scene = Level.LoadSceneFromBytes(data.Bytes);
                 if (scene == null)
+                {
+                    Profiler.EndEvent();
                     throw new FlaxException("Failed to deserialize scene");
+                }
             }
+
+            Profiler.EndEvent();
         }
 
         /// <summary>
@@ -105,14 +122,19 @@ namespace FlaxEditor.Utilities
         /// </summary>
         public void DeletedScenes()
         {
+            Profiler.BeginEvent("DuplicateScenes.DeletedScenes");
             Editor.Log("Restoring scene data");
 
             // TODO: here we can keep changes for actors marked to keep their state after simulation
 
             // Delete new scenes
             if (Level.UnloadAllScenes())
+            {
+                Profiler.EndEvent();
                 throw new FlaxException("Failed to unload scenes.");
+            }
             FlaxEngine.Scripting.FlushRemovedObjects();
+            Profiler.EndEvent();
         }
 
         /// <summary>
@@ -122,6 +144,7 @@ namespace FlaxEditor.Utilities
         {
             if (!HasData)
                 throw new InvalidOperationException("DuplicateScenes has not gathered scene data yet.");
+            Profiler.BeginEvent("DuplicateScenes.RestoreSceneData");
 
             // Deserialize old scenes
             for (int i = 0; i < _scenesData.Count; i++)
@@ -129,7 +152,10 @@ namespace FlaxEditor.Utilities
                 var data = _scenesData[i];
                 var scene = Level.LoadSceneFromBytes(data.Bytes);
                 if (scene == null)
+                {
+                    Profiler.EndEvent();
                     throw new FlaxException("Failed to deserialize scene");
+                }
 
                 // Restore `dirty` state
                 if (data.IsDirty)
@@ -138,6 +164,7 @@ namespace FlaxEditor.Utilities
             _scenesData.Clear();
 
             Editor.Log("Restored previous scenes");
+            Profiler.EndEvent();
         }
     }
 }
diff --git a/Source/Engine/Content/JsonAsset.cpp b/Source/Engine/Content/JsonAsset.cpp
index c9a07e665..5015d61d9 100644
--- a/Source/Engine/Content/JsonAsset.cpp
+++ b/Source/Engine/Content/JsonAsset.cpp
@@ -16,6 +16,7 @@
 #include "Engine/Content/Factories/JsonAssetFactory.h"
 #include "Engine/Core/Cache.h"
 #include "Engine/Debug/Exceptions/JsonParseException.h"
+#include "Engine/Profiler/ProfilerCPU.h"
 #include "Engine/Scripting/Scripting.h"
 #include "Engine/Utilities/StringConverter.h"
 
@@ -31,6 +32,7 @@ String JsonAssetBase::GetData() const
 {
     if (Data == nullptr)
         return String::Empty;
+    PROFILE_CPU_NAMED("JsonAsset.GetData");
 
     // Get serialized data
     rapidjson_flax::StringBuffer buffer;
@@ -133,7 +135,10 @@ Asset::LoadResult JsonAssetBase::loadAsset()
 #endif
 
     // Parse json document
-    Document.Parse(data.Get<char>(), data.Length());
+    {
+        PROFILE_CPU_NAMED("Json.Parse");
+        Document.Parse(data.Get<char>(), data.Length());
+    }
     if (Document.HasParseError())
     {
         Log::JsonParseException(Document.GetParseError(), Document.GetErrorOffset());
diff --git a/Source/Engine/Content/Storage/JsonStorageProxy.cpp b/Source/Engine/Content/Storage/JsonStorageProxy.cpp
index 1d5dbdf19..5982691e7 100644
--- a/Source/Engine/Content/Storage/JsonStorageProxy.cpp
+++ b/Source/Engine/Content/Storage/JsonStorageProxy.cpp
@@ -8,6 +8,7 @@
 #include "Engine/Serialization/JsonWriters.h"
 #include "Engine/Level/Types.h"
 #include "Engine/Debug/Exceptions/JsonParseException.h"
+#include "Engine/Profiler/ProfilerCPU.h"
 #include <ThirdParty/rapidjson/document.h>
 
 bool JsonStorageProxy::IsValidExtension(const StringView& extension)
@@ -17,6 +18,7 @@ bool JsonStorageProxy::IsValidExtension(const StringView& extension)
 
 bool JsonStorageProxy::GetAssetInfo(const StringView& path, Guid& resultId, String& resultDataTypeName)
 {
+    PROFILE_CPU();
     // TODO: we could just open file and start reading until we find 'ID:..' without parsing whole file - could be much more faster
 
     // Load file
@@ -28,7 +30,10 @@ bool JsonStorageProxy::GetAssetInfo(const StringView& path, Guid& resultId, Stri
 
     // Parse data
     rapidjson_flax::Document document;
-    document.Parse((const char*)fileData.Get(), fileData.Count());
+    {
+        PROFILE_CPU_NAMED("Json.Parse");
+        document.Parse((const char*)fileData.Get(), fileData.Count());
+    }
     if (document.HasParseError())
     {
         Log::JsonParseException(document.GetParseError(), document.GetErrorOffset(), path);
@@ -81,6 +86,7 @@ void ChangeIds(rapidjson_flax::Value& obj, rapidjson_flax::Document& document, c
 bool JsonStorageProxy::ChangeId(const StringView& path, const Guid& newId)
 {
 #if USE_EDITOR
+    PROFILE_CPU();
 
     // Load file
     Array<byte> fileData;
@@ -91,7 +97,10 @@ bool JsonStorageProxy::ChangeId(const StringView& path, const Guid& newId)
 
     // Parse data
     rapidjson_flax::Document document;
-    document.Parse((const char*)fileData.Get(), fileData.Count());
+    {
+        PROFILE_CPU_NAMED("Json.Parse");
+        document.Parse((const char*)fileData.Get(), fileData.Count());
+    }
     if (document.HasParseError())
     {
         Log::JsonParseException(document.GetParseError(), document.GetErrorOffset(), path);
diff --git a/Source/Engine/Core/Config/GameSettings.cpp b/Source/Engine/Core/Config/GameSettings.cpp
index 26d9175b0..1ccdf1e51 100644
--- a/Source/Engine/Core/Config/GameSettings.cpp
+++ b/Source/Engine/Core/Config/GameSettings.cpp
@@ -19,6 +19,7 @@
 #include "Engine/Content/AssetReference.h"
 #include "Engine/Engine/EngineService.h"
 #include "Engine/Engine/Globals.h"
+#include "Engine/Profiler/ProfilerCPU.h"
 #include "Engine/Streaming/StreamingSettings.h"
 
 class GameSettingsService : public EngineService
@@ -74,6 +75,7 @@ GameSettings* GameSettings::Get()
     {
         // Load root game settings asset.
         // It may be missing in editor during dev but must be ready in the build game.
+        PROFILE_CPU();
         const auto assetPath = Globals::ProjectContentFolder / TEXT("GameSettings.json");
         GameSettingsAsset = Content::LoadAsync<JsonAsset>(assetPath);
         if (GameSettingsAsset == nullptr)
@@ -99,6 +101,8 @@ GameSettings* GameSettings::Get()
 
 bool GameSettings::Load()
 {
+    PROFILE_CPU();
+
     // Load main settings asset
     auto settings = Get();
     if (!settings)
@@ -143,7 +147,7 @@ bool GameSettings::Load()
 
 void GameSettings::Apply()
 {
-    // TODO: impl this
+    PROFILE_CPU();
 #define APPLY_SETTINGS(type) \
     { \
         type* obj = type::Get(); \
diff --git a/Source/Engine/Level/Actor.cpp b/Source/Engine/Level/Actor.cpp
index 20ec4cb7a..2e3f75525 100644
--- a/Source/Engine/Level/Actor.cpp
+++ b/Source/Engine/Level/Actor.cpp
@@ -1599,7 +1599,10 @@ bool Actor::FromBytes(const Span<byte>& data, Array<Actor*>& output, ISerializeM
 
         // Load JSON 
         rapidjson_flax::Document document;
-        document.Parse(buffer, bufferSize);
+        {
+            PROFILE_CPU_NAMED("Json.Parse");
+            document.Parse(buffer, bufferSize);
+        }
         if (document.HasParseError())
         {
             Log::JsonParseException(document.GetParseError(), document.GetErrorOffset());
@@ -1638,7 +1641,10 @@ bool Actor::FromBytes(const Span<byte>& data, Array<Actor*>& output, ISerializeM
 
         // Load JSON 
         rapidjson_flax::Document document;
-        document.Parse(buffer, bufferSize);
+        {
+            PROFILE_CPU_NAMED("Json.Parse");
+            document.Parse(buffer, bufferSize);
+        }
         if (document.HasParseError())
         {
             Log::JsonParseException(document.GetParseError(), document.GetErrorOffset());
@@ -1763,7 +1769,10 @@ void Actor::FromJson(const StringAnsiView& json)
 
     // Load JSON
     rapidjson_flax::Document document;
-    document.Parse(json.Get(), json.Length());
+    {
+        PROFILE_CPU_NAMED("Json.Parse");
+        document.Parse(json.Get(), json.Length());
+    }
     if (document.HasParseError())
     {
         Log::JsonParseException(document.GetParseError(), document.GetErrorOffset());
diff --git a/Source/Engine/Level/Level.cpp b/Source/Engine/Level/Level.cpp
index 916153a8b..5b99ba5ff 100644
--- a/Source/Engine/Level/Level.cpp
+++ b/Source/Engine/Level/Level.cpp
@@ -496,6 +496,7 @@ public:
         // - load scenes (from temporary files)
         // Note: we don't want to override original scene files
 
+        PROFILE_CPU_NAMED("Level.ReloadScripts");
         LOG(Info, "Scripts reloading start");
         const auto startTime = DateTime::NowUTC();
 
@@ -565,7 +566,10 @@ public:
             // Parse json
             const auto& sceneData = scenes[i].Data;
             ISerializable::SerializeDocument document;
-            document.Parse(sceneData.GetString(), sceneData.GetSize());
+            {
+                PROFILE_CPU_NAMED("Json.Parse");
+                document.Parse(sceneData.GetString(), sceneData.GetSize());
+            }
             if (document.HasParseError())
             {
                 LOG(Error, "Failed to deserialize scene {0}. Result: {1}", scenes[i].Name, GetParseError_En(document.GetParseError()));
@@ -851,7 +855,10 @@ bool Level::loadScene(const BytesContainer& sceneData, bool autoInitialize, Scen
 
     // Parse scene JSON file
     rapidjson_flax::Document document;
-    document.Parse(sceneData.Get<char>(), sceneData.Length());
+    {
+        PROFILE_CPU_NAMED("Json.Parse");
+        document.Parse(sceneData.Get<char>(), sceneData.Length());
+    }
     if (document.HasParseError())
     {
         Log::JsonParseException(document.GetParseError(), document.GetErrorOffset());
@@ -869,9 +876,7 @@ bool Level::loadScene(rapidjson_flax::Document& document, bool autoInitialize, S
         LOG(Error, "Missing Data member.");
         return true;
     }
-
     const int32 saveEngineBuild = JsonTools::GetInt(document, "EngineBuild", 0);
-
     return loadScene(data->value, saveEngineBuild, autoInitialize, outScene);
 }
 
diff --git a/Source/Engine/Level/Prefabs/Prefab.Apply.cpp b/Source/Engine/Level/Prefabs/Prefab.Apply.cpp
index abad0c275..48ecc7e7c 100644
--- a/Source/Engine/Level/Prefabs/Prefab.Apply.cpp
+++ b/Source/Engine/Level/Prefabs/Prefab.Apply.cpp
@@ -217,7 +217,10 @@ void PrefabInstanceData::SerializePrefabInstances(Array<PrefabInstanceData>& pre
         writer.EndArray();
 
         // Parse json to get DOM
-        instance.Data.Parse(tmpBuffer.GetString(), tmpBuffer.GetSize());
+        {
+            PROFILE_CPU_NAMED("Json.Parse");
+            instance.Data.Parse(tmpBuffer.GetString(), tmpBuffer.GetSize());
+        }
         if (instance.Data.HasParseError())
         {
             LOG(Warning, "Failed to parse serialized scene objects data.");
@@ -462,7 +465,10 @@ bool PrefabInstanceData::SynchronizePrefabInstances(Array<PrefabInstanceData>& p
         writer.EndArray();
 
         // Parse json to get DOM
-        defaultInstanceData.Parse(tmpBuffer.GetString(), tmpBuffer.GetSize());
+        {
+            PROFILE_CPU_NAMED("Json.Parse");
+            defaultInstanceData.Parse(tmpBuffer.GetString(), tmpBuffer.GetSize());
+        }
         if (defaultInstanceData.HasParseError())
         {
             LOG(Warning, "Failed to parse serialized scene objects data.");
@@ -666,7 +672,10 @@ bool Prefab::ApplyAllInternal(Actor* targetActor, bool linkTargetActorObjectToPr
     newPrefabInstanceIdToDataIndex.EnsureCapacity(ObjectsCount * 4);
     {
         // Parse json to DOM document
-        diffDataDocument.Parse(dataBuffer.GetString(), dataBuffer.GetSize());
+        {
+            PROFILE_CPU_NAMED("Json.Parse");
+            diffDataDocument.Parse(dataBuffer.GetString(), dataBuffer.GetSize());
+        }
         if (diffDataDocument.HasParseError())
         {
             LOG(Warning, "Failed to parse serialized scene objects data.");
diff --git a/Source/Engine/Level/Prefabs/PrefabManager.cpp b/Source/Engine/Level/Prefabs/PrefabManager.cpp
index 77698e739..7cd62913d 100644
--- a/Source/Engine/Level/Prefabs/PrefabManager.cpp
+++ b/Source/Engine/Level/Prefabs/PrefabManager.cpp
@@ -372,7 +372,10 @@ bool PrefabManager::CreatePrefab(Actor* targetActor, const StringView& outputPat
     {
         // Parse json to DOM document
         rapidjson_flax::Document doc;
-        doc.Parse(actorsDataBuffer.GetString(), actorsDataBuffer.GetSize());
+        {
+            PROFILE_CPU_NAMED("Json.Parse");
+            doc.Parse(actorsDataBuffer.GetString(), actorsDataBuffer.GetSize());
+        }
         if (doc.HasParseError())
         {
             LOG(Warning, "Failed to parse serialized actors data.");
diff --git a/Source/Engine/Scripting/Plugins/PluginManager.cs b/Source/Engine/Scripting/Plugins/PluginManager.cs
index da0d7642d..6579b21da 100644
--- a/Source/Engine/Scripting/Plugins/PluginManager.cs
+++ b/Source/Engine/Scripting/Plugins/PluginManager.cs
@@ -85,18 +85,22 @@ namespace FlaxEngine
 #if FLAX_EDITOR
         internal static void InitializeGamePlugins()
         {
+            Profiler.BeginEvent("PluginManager.InitializeGamePlugins");
             for (var i = 0; i < _gamePlugins.Count; i++)
             {
                 InvokeInitialize(_gamePlugins[i]);
             }
+            Profiler.EndEvent();
         }
 
         internal static void DeinitializeGamePlugins()
         {
+            Profiler.BeginEvent("PluginManager.DeinitializeGamePlugins");
             for (var i = _gamePlugins.Count - 1; i >= 0; i--)
             {
                 InvokeDeinitialize(_gamePlugins[i]);
             }
+            Profiler.EndEvent();
         }
 #endif
 
diff --git a/Source/Engine/Scripting/Scripting.cpp b/Source/Engine/Scripting/Scripting.cpp
index 715c1caf6..7744af2f3 100644
--- a/Source/Engine/Scripting/Scripting.cpp
+++ b/Source/Engine/Scripting/Scripting.cpp
@@ -259,7 +259,10 @@ bool Scripting::LoadBinaryModules(const String& path, const String& projectFolde
 
     // Parse Json data
     rapidjson_flax::Document document;
-    document.Parse((char*)fileData.Get(), fileData.Count());
+    {
+        PROFILE_CPU_NAMED("Json.Parse");
+        document.Parse((char*)fileData.Get(), fileData.Count());
+    }
     if (document.HasParseError())
     {
         LOG(Error, "Failed to file contents.");