diff --git a/example/src/main.cpp b/example/src/main.cpp
index 49ce53e..c923326 100644
--- a/example/src/main.cpp
+++ b/example/src/main.cpp
@@ -6,6 +6,6 @@ int main(int argc, char* argv[]) {
     init.size      = {800, 600};
     init.resizable = true;
     init.centered  = true;
-    // init.api = mirage::renderer_api::opengl;
+    init.api = mirage::renderer_api::opengl;
     return run(init);
 }
diff --git a/src/core/renderer/render_context.cpp b/src/core/renderer/render_context.cpp
index b3cbdac..380076b 100644
--- a/src/core/renderer/render_context.cpp
+++ b/src/core/renderer/render_context.cpp
@@ -49,14 +49,15 @@ namespace mirage {
             LLGL::BindFlags::ConstantBuffer,
             LLGL::StageFlags::VertexStage,
             0
-        );
-        pipeline = generated_pipelines::create_aorii_rect_pipeline(get_renderer(), swap_chain->GetRenderPass(), pipeline_layout_desc);
+            );
+        pipeline = generated_pipelines::create_aorii_rect_pipeline(get_renderer(), swap_chain->GetRenderPass(),
+            pipeline_layout_desc);
 
         push_rectangle({0, 0}, {100, 100}, linear_color::white);
         return true;
     }
 
-    render_context::update_status render_context::update(const duration_type& in_delta_time) {
+    render_context::update_status render_context::render_update(const duration_type& in_delta_time) {
         if (!command_buffer || !swap_chain) {
             return update_status::fail;
         }
@@ -64,11 +65,12 @@ namespace mirage {
             return update_status::wait_for_present;
         }
 
-        if (auto size = new_size.exchange({})) {
-            swap_chain->ResizeBuffers(size.value());
+        if (new_size) {
+            swap_chain->ResizeBuffers(new_size.value());
             pipeline_param param;
             param.mvp = get_projection_matrix();
             param_buffer->set(param);
+            new_size.reset();
         }
 
         command_buffer->Begin(); {
@@ -88,6 +90,7 @@ namespace mirage {
             command_buffer->EndRenderPass();
         }
         command_buffer->End();
+        get_renderer()->GetCommandQueue()->Submit(*command_buffer);
         swap_chain->Present();
         return update_status::success;
     }
@@ -106,7 +109,8 @@ namespace mirage {
         spdlog::info("垂直同步: {}", vsync);
     }
 
-    void render_context::push_rectangle(const Eigen::Vector2f& in_pos, const Eigen::Vector2f& in_size, const linear_color_type& in_color) {
+    void render_context::push_rectangle(const Eigen::Vector2f& in_pos, const Eigen::Vector2f& in_size,
+        const linear_color_type& in_color) {
         vertex va{};
         vertex vb{};
         vertex vc{};
@@ -139,7 +143,8 @@ namespace mirage {
     }
 
     Eigen::Matrix4f render_context::get_projection_matrix() const {
-        const bool is_clip_range_unit_cube = get_renderer()->GetRenderingCaps().clippingRange == LLGL::ClippingRange::MinusOneToOne;
+        const bool is_clip_range_unit_cube = get_renderer()->GetRenderingCaps().clippingRange ==
+                                             LLGL::ClippingRange::MinusOneToOne;
         const auto& size = swap_chain->GetResolution();
 
         Eigen::Matrix4f matrix = Eigen::Matrix4f::Identity();
diff --git a/src/core/renderer/render_context.h b/src/core/renderer/render_context.h
index 5486fe8..6f4cf05 100644
--- a/src/core/renderer/render_context.h
+++ b/src/core/renderer/render_context.h
@@ -12,7 +12,7 @@ namespace mirage {
         ~render_context();
 
         bool init(const swap_chain_descriptor& in_desc, const std::shared_ptr<LLGL::Surface>& in_surface);
-        update_status update(const duration_type& in_delta_time);
+        update_status render_update(const duration_type& in_delta_time);
         void resize_swap_chain(const LLGL::Extent2D& in_size, long in_flag);
 
         void set_vsync(bool in_vsync);
@@ -43,6 +43,6 @@ namespace mirage {
         LLGL::SwapChain* swap_chain         = nullptr;
         bool vsync                          = true;
         pipeline_info pipeline;
-        std::atomic<std::optional<LLGL::Extent2D>> new_size;
+        std::optional<LLGL::Extent2D> new_size;
     };
 } // namespace mirage
diff --git a/src/core/window/window.cpp b/src/core/window/window.cpp
index a4ca143..8d8dddd 100644
--- a/src/core/window/window.cpp
+++ b/src/core/window/window.cpp
@@ -45,7 +45,7 @@ namespace mirage {
 
     void window::render_update(const duration_type& in_delta_time) {
         if (context) {
-            context->update(in_delta_time);
+            context->render_update(in_delta_time);
         }
     }
 }
diff --git a/src/core/window/window_manager.cpp b/src/core/window/window_manager.cpp
index 8a7f68e..30e1352 100644
--- a/src/core/window/window_manager.cpp
+++ b/src/core/window/window_manager.cpp
@@ -6,9 +6,8 @@
 namespace mirage {
     void window_manager::update(const duration_type& in_delta_time) {
         LLGL::Surface::ProcessEvents();
+        render_thread_func();
         to_destroy.clear();
-
-        std::shared_lock lock(mutex);
         should_exit_flag = windows.empty() && to_destroy.empty();
     }
 
@@ -23,13 +22,11 @@ namespace mirage {
             return false;
         }
         last_time     = std::chrono::high_resolution_clock::now();
-        render_thread = std::thread(&window_manager::render_thread_func, this);
         return true;
     }
 
     bool window_manager::destroy() {
         should_exit_flag = true;
-        render_thread.join();
         windows.clear();
         to_destroy.clear();
         return true;
@@ -38,10 +35,7 @@ namespace mirage {
     std::weak_ptr<window> window_manager::create_window(const LLGL::WindowDescriptor& desc) {
         auto window_ptr = std::make_shared<window>(desc);
 
-        {
-            std::unique_lock lock(mutex);
-            windows.push_back(window_ptr);
-        }
+        windows.push_back(window_ptr);
         if (!window_ptr) {
             spdlog::error("无法创建窗口");
             return {};
@@ -50,7 +44,6 @@ namespace mirage {
     }
 
     void window_manager::destroy_window(const window& in_window) {
-        std::unique_lock lock(mutex);
         for (auto it = windows.begin(); it != windows.end(); ++it) {
             if (it->get() == &in_window) {
                 to_destroy.push_back(*it);
@@ -61,7 +54,6 @@ namespace mirage {
     }
 
     std::weak_ptr<window> window_manager::get_main_window() {
-        std::shared_lock lock(mutex);
         if (windows.empty()) {
             return {};
         }
@@ -69,17 +61,12 @@ namespace mirage {
     }
 
     void window_manager::render_thread_func() {
-        while (!should_exit_flag) {
-            const auto& current_time = std::chrono::high_resolution_clock::now();
-            const auto in_delta_time = current_time - last_time;
-            last_time                = current_time;
+        const auto& current_time = std::chrono::high_resolution_clock::now();
+        const auto in_delta_time = current_time - last_time;
+        last_time                = current_time;
 
-            std::shared_lock lock(mutex);
-            for (const auto& w : windows) {
-                w->render_update(in_delta_time);
-            }
-
-            std::this_thread::sleep_for(std::chrono::milliseconds(16));
+        for (const auto& w : windows) {
+            w->render_update(in_delta_time);
         }
     }
 } // namespace mirage
diff --git a/src/core/window/window_manager.h b/src/core/window/window_manager.h
index a22f369..d3d8d37 100644
--- a/src/core/window/window_manager.h
+++ b/src/core/window/window_manager.h
@@ -31,9 +31,7 @@ namespace mirage {
         std::vector<std::shared_ptr<window>> to_destroy;
 
         void render_thread_func();
-        std::thread render_thread;
         time_type last_time               = {};
         std::atomic_bool should_exit_flag = false;
-        std::shared_mutex mutex;
     };
 } // namespace mirage