Set these to "Low" or "Off"—they are incredibly demanding on the CPU.
Avoid "Windowed" or "Borderless Windowed" to give the game exclusive access to GPU resources. Essential Software Tools ULTIMATE FPS BOOST GUIDE FOR LOW END PC/LAPTOP ...
Enable "Radeon Anti-Lag" and set "Texture Filtering Quality" to Performance. Set these to "Low" or "Off"—they are incredibly