Create a commandline.txt file in your main GTA 5 folder to add parameters like -disableHyperthreading (for older CPUs) or -FrameQueueLimit 1 to reduce input lag.
Found in Advanced Graphics, setting this to 0.500 or 0.667 lowers the internal render resolution while keeping the UI sharp, providing a major performance boost for weak GPUs. GTA 5 Best FPS Boost Guide 2023
Set your power management mode to "Prefer Maximum Performance" and cap your global framerate to 3 FPS below your monitor's refresh rate (e.g., 141 FPS for a 144Hz screen) to prevent engine instability. Create a commandline
Installing the game on an SSD is highly recommended to improve asset streaming and reduce micro-stutters while driving fast. Installing the game on an SSD is highly
Reducing these sliders to 0-50% lowers CPU load significantly, which is vital for maintaining high framerates in crowded city areas. Advanced Performance Tweaks