This can cause several issues:
If you game or use fullscreen apps on Windows 11, you’ve probably encountered . It’s a feature introduced in Windows 10 and carried over to 11 that changes how fullscreen programs behave. fullscreen optimizations windows 11
The Fullscreen optimizations settings page offers several options to customize the behavior of fullscreen applications: This can cause several issues: If you game
DirectX 12 and Vulkan titles run on modern presentation paradigms that bypass legacy FSE entirely. Disabling the feature will yield no performance gains for these titles. Only consider disabling Fullscreen Optimizations if you frequently play competitive DirectX 9 or DirectX 11 esports titles and notice measurable mouse input delay or frame pacing inconsistencies. Disabling the feature will yield no performance gains
If you want to troubleshoot performance issues in a specific game, tell me and your current graphics card so I can provide tailored optimization steps.