Lowering these settings is the fastest way to gain frames without needing technical tweaks.
Lowering this to 1280x720 (or even 800x600 for extreme cases) can significantly boost FPS.
Turn this Off (except for "Limit FPS in Background/Menus" to save resources) to allow your system to push maximum frames.
Set everything (Material, Texture, Detail, UI) to Low .
Turn off Vignette , VSync , Bloom , Distortion , and Cast Shadows .
Set to Fullscreen to prioritize game performance and reduce input lag.
Set to None and 1x respectively. 2. Windows System Optimizations