also disable shading rate

src/main.rs

@@ -307,7 +307,7 @@ impl App {
         let mut device_extensions = DeviceExtensions {
             khr_swapchain: true,
             ext_mesh_shader: false,
-            khr_fragment_shading_rate: true,
+            khr_fragment_shading_rate: false,
             ..DeviceExtensions::empty()
         };