Window Mode = Fullscreen
Resolution = 1920 x 1080 16:9
*Vsync = Off
Frame Rate Limit = 120 FPS
Rendering Mode = DIRECTX 12

*Opt for a Freesync or Gsync monitor instead of enabling Vsync as it will lower FPS.

Brightness = 100%
User Interface Contrast = 1x
Color Blind Mode = Off
Color Blind Strength = 5
Motion Blur = Off
User Interface Parallax = On

*This entire section is personal preference

Aliasing & Super Resolution = TSR Low
3D Resolution = 72%
Dynamic 3D Resolution = Off
Nanite Virtualized Geometry = Off
*Shadows = Off

* Feel free to add Shadows if you so wish.

Global Illumination = Off
Reflections = Off
View Distance = Medium
Textures = Medium
*Effects = Medium
Post Processing = Low

*It may make sense to switch effects for low and post processing for medium if you care less about particles.