diff --git a/Engine/include/Engine/Assets/AssetManager.h b/Engine/include/Engine/Assets/AssetManager.h
index 8201edd..103ea62 100644
--- a/Engine/include/Engine/Assets/AssetManager.h
+++ b/Engine/include/Engine/Assets/AssetManager.h
@@ -232,6 +232,11 @@ namespace Engine
             // 后续扩展点：TextureHandle / MaterialHandle / ShaderHandle
             // 各自一个 AssetCache<T> + 便捷方法，模式与 Model 完全一致。
 
+            // 把 dirty 的 GUID 注册表落盘（Application 退出 / 场景保存时调）。
+            // 内部幂等：非 dirty 直接 return。GetOrCreateGUID 只标 dirty 不落盘，
+            // 避免每次新增 GUID 都全量重写 yaml（开发期编辑器卡顿主因之一）
+            void FlushGUIDRegistry();
+
         private:
             void LoadGUIDRegistry();
             void SaveGUIDRegistry() const;
@@ -241,9 +246,13 @@ namespace Engine
             AssetCache<Model> m_Models;
             AssetCache<Cubemap> m_Environments;
 
-            // GUID 注册表（双向）；dirty 即时保存，无析构落盘依赖
+            // GUID 注册表（双向）；GetOrCreateGUID 标 dirty，FlushGUIDRegistry 落盘
+            // （Application 退出 / 场景保存时统一 flush，避免每次新增都全量重写 yaml）
             std::unordered_map<u64, std::string> m_GuidToPath;
             std::unordered_map<std::string, u64> m_PathToGuid;
+            
+            bool m_GuidRegistryDirty = false;
+
         };
     } // namespace Assets
 } // namespace Engine
diff --git a/Engine/src/Assets/AssetManager.cpp b/Engine/src/Assets/AssetManager.cpp
index cde61c9..c55d3dd 100644
--- a/Engine/src/Assets/AssetManager.cpp
+++ b/Engine/src/Assets/AssetManager.cpp
@@ -50,6 +50,7 @@ namespace Engine::Assets {
         m_PathToGuid.emplace(path, guid);
         m_GuidToPath.emplace(guid, path);
         SaveGUIDRegistry();
+        m_GuidRegistryDirty = true;
         return guid;
     }
 
@@ -61,6 +62,12 @@ namespace Engine::Assets {
         return {};
     }
 
+    void AssetManager::FlushGUIDRegistry() {
+        if (!m_GuidRegistryDirty) return;
+        SaveGUIDRegistry();
+        m_GuidRegistryDirty = false;
+    }
+
     void AssetManager::LoadGUIDRegistry()
     {
         try {
diff --git a/Engine/src/Core/Application.cpp b/Engine/src/Core/Application.cpp
index 4ed73e4..daf15a7 100644
--- a/Engine/src/Core/Application.cpp
+++ b/Engine/src/Core/Application.cpp
@@ -55,6 +55,13 @@ namespace Engine {
             m_Renderer->GetDevice().GetDevice().waitIdle();
         }
 
+        // ✅ 进程退出前持久化 GUID 注册表（GetOrCreateGUID 只标 dirty，
+        // 此处统一落盘，避免开发期每次新增都触发全量 yaml 重写）
+        if (m_Assets) {
+            m_Assets->FlushGUIDRegistry();
+        }
+
+
         if (m_ImGuiLayer) m_ImGuiLayer.reset();
 
         // 注意：这里不能 Logger::Shutdown()——成员析构（Device 销毁等）
diff --git a/Engine/src/Physics/PhysicsWorld.cpp b/Engine/src/Physics/PhysicsWorld.cpp
index 3b09e4f..1f171bf 100644
--- a/Engine/src/Physics/PhysicsWorld.cpp
+++ b/Engine/src/Physics/PhysicsWorld.cpp
@@ -185,7 +185,7 @@ namespace Engine {
         m_ObjectVsObjectLayerFilter = CreateScope<ObjectLayerPairFilterImpl>();
 
         m_System = CreateScope<JPH::PhysicsSystem>();
-        m_System->Init(4096, 0, 16384, 4096,
+        m_System->Init(4096, 65536, 16384, 4096,
                        *m_BPLayerInterface, *m_ObjectVsBPLayerFilter,
                        *m_ObjectVsObjectLayerFilter);
         m_System->SetGravity(JPH::Vec3(0.0f, -9.81f, 0.0f));
diff --git a/Engine/src/Serialization/SceneSerializer.cpp b/Engine/src/Serialization/SceneSerializer.cpp
index 155687a..0bc62cd 100644
--- a/Engine/src/Serialization/SceneSerializer.cpp
+++ b/Engine/src/Serialization/SceneSerializer.cpp
@@ -461,6 +461,7 @@ namespace Engine::Serialization {
                 return false;
             }
             file << doc;
+            assets.FlushGUIDRegistry();
             return true;
         }
         catch (const YAML::Exception& e) {
diff --git a/Engine/src/Vulkan/DescriptorManager.cpp b/Engine/src/Vulkan/DescriptorManager.cpp
index 99979d2..4d43dca 100644
--- a/Engine/src/Vulkan/DescriptorManager.cpp
+++ b/Engine/src/Vulkan/DescriptorManager.cpp
@@ -34,8 +34,8 @@ namespace Engine
 
         vk::DescriptorPoolCreateInfo poolInfo;
         poolInfo.setMaxSets(kChunkSets)
-                .setPoolSizes(poolSizes)
-                .setFlags(vk::DescriptorPoolCreateFlagBits::eFreeDescriptorSet);
+                .setPoolSizes(poolSizes);
+        // .setFlags(vk::DescriptorPoolCreateFlagBits::eFreeDescriptorSet);
 
         return m_Device.GetDevice().createDescriptorPool(poolInfo);
     }