Windows includes several features designed to improve the gaming experience, but many of them add overhead or interfere with how games manage the display, input, and GPU access. The tweaks below remove that overhead via targeted registry edits — apply the ones relevant to your setup.Documentation Index
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Disable Fullscreen Optimizations
Fullscreen Optimizations is a Windows feature that runs “exclusive fullscreen” games in a borderless windowed mode behind the scenes. This allows Alt+Tab and overlays to work more smoothly, but it also hands display control back to the DWM compositor, which can introduce input latency and frame pacing irregularities compared to true exclusive fullscreen. SettingGameDVR_DXGIHonorFSEWindowsCompatible to 1 instructs DXGI to honour the application’s original fullscreen exclusive request rather than redirecting it.
Disable Optimizations for Windowed Games
Windows can also apply swap-chain upgrades to games running in windowed or borderless-windowed mode, substituting the application’s chosen present model for one Windows considers more efficient. This setting disables that substitution, ensuring the game’s own rendering path is used without interference.Disable Mouse Acceleration
The Enhance Pointer Precision option in Windows artificially amplifies cursor movement when the mouse is moved slowly, making the pointer travel further per inch of physical movement at low speeds than at high speeds. This inconsistency makes it harder to build the muscle memory needed for precise, repeatable aiming in games. Setting all three threshold and speed values to0 produces a linear 1:1 relationship between physical movement and on-screen cursor distance.
Disable Game Mode
Game Mode attempts to prioritize the active game’s CPU and GPU resources by throttling background processes and system tasks. In practice, on well-tuned systems it provides little benefit and can occasionally cause frame rate instability or audio stuttering as Windows aggressively reallocates resources mid-session.A small number of titles — particularly those that explicitly request Game Mode via the Windows Gaming Device and App Readiness API — may see a slight performance uplift with Game Mode enabled. If you notice worse performance in a specific game after applying this tweak, try re-enabling it for that title.
Disable Game Bar
The Xbox Game Bar is an overlay shell that provides quick access to widgets for capturing clips, monitoring performance, and chatting with Xbox friends. It runs persistently in the background and can intercept certain keyboard shortcuts (notablyWin+G). Disabling it removes the background process and prevents the overlay from launching.