Go to Windows Security > Device Security > Core Isolation and turn off Memory Integrity . This can recover up to 10-33% of gaming performance.
Windows features can often "steal" performance or cause micro-stutters.
Set Meshes to Low to give your builds the "mobile-style" look, which significantly reduces input lag and improves visibility. How To Fix Performance Mode in Fortnite! *BOOST...
In the Epic Games Launcher , go to Fortnite's Options and uncheck High Resolution Textures to save ~14GB of space and stop the game from streaming textures mid-match, which causes stutters.
If you cannot change or save settings, your GameUserSettings.ini file may be set to Read-only . Right-click the file in %localappdata%\FortniteGame\Saved\Config\WindowsClient\ and uncheck "Read-only" in Properties . Go to Windows Security > Device Security >
Set Shadows, Global Illumination, and Nanite to Off . Set Textures, Effects, and Post-Processing to Low . Windows & System Fixes
Use your monitor's native resolution in Fullscreen mode (not Windowed Fullscreen) to reduce input delay. If FPS is still low, drop the 3D Resolution slider to 75% or use an upscaler like TSR (Temporal Super Resolution) on "Low". Set Meshes to Low to give your builds
Set Power Management Mode to Prefer Maximum Performance and Shader Cache Size to 10GB to reduce loading stutters. Summary of "Pros" Competitive Settings (2026)