Set this to DirectX 10 or 10.1 . It’s less taxing on older GPUs than DirectX 11.
Keep this at Normal . Setting it to "High" on a low-VRAM card will cause massive stuttering. GTA 5 Grand RP Low End PC Lag & FPS Fix | 60 FP...
Your operating system often tries to look pretty at the expense of your game. Set this to DirectX 10 or 10