Reducing this slider below 100% (e.g., 75-80%) can boost FPS while keeping HUD elements sharp.
The most effective way to gain FPS is by using the rendering mode. Rendering Mode: Set to Performance and restart the game.
Set all options (Shadows, Anti-Aliasing, Textures, Effects) to Low or Off .
Lowering to 1280x720 or 1600x900 significantly reduces the load on your GPU.
Keep on Medium or Low ; lowering this reduces the CPU's rendering load. Windows System Tweaks
