Change the graphic parameters for an optimal view.
Best LOD
4096pixel Fix (Just 1024 In game mods Whith 2k texture  is now open)
No motion blur
Multithreading
Msaa
antialising
ssao
color
textures


file i Have modded

system.cfg
Veryhightspec.cfg
sys_spec_postprocessing.cfg
sys_spec_texture.cfg

if you want no Glow or no more color effect rewrite
in system.cfg:
r_Gamma=0.5
r_Contrast=0.5
r_Brightness=0.5

in VeryHightSpec.cfg
r_ColorGrading = 2.2