also, can already help you get more frames now

Screen Mode: Windowed - have this full screen, windows naturally pours its resources into full screen programs, windowed means it doesnt
Disable rendering of objects when not visible. (Occlusion Culling) : Disabled - have this on
Real-time Reflections : High - dont need this on, you wont notice any real difference
Edge Smoothing (Anti-aliasing) : FXAA - off, you need a better gpu with more Vram to handle AA features tbh, but if you can run at 1920x1080, you wont need AA for this game at all, its well made
Shadow Resolution : High - 2048p, drop to 1024

Movement Physics
Self: Full, simple or off
Other NPCs: Full, simple or off, you dont have the cpu for it
Limb Darkening: Enabled, game looks better off imo
Radial Blur: Enabled, off as you wont notice it
Screen Space Ambient Occlusion: Strong
Glare: Normal
Enable depth of field: Enabled