: Ultimate Performance (for Desktops) or High Performance (for Laptops). This ensures your CPU doesn't throttle to save power. NVIDIA Control Panel : Power Management Mode : Prefer Maximum Performance.
: Off . Turning this off is critical for reducing input delay.
: Unlimited for maximum responsiveness, or cap it just below your monitor's refresh rate (e.g., 141 for 144Hz) to maintain stability.
: Low . This provides the largest individual performance gain.