Well you can try this Mod by ovni,I added a bunch of stuff to it but it has a read me for install and if you do not like something in read me,there is how to get rid of it.
Put these settings in ogp_override.cfg in the mod folder if you do not like it darker ,these are adjustable
e_svoTI_SSAOAmount = 1.4
Allows to scale down SSAO (SSDO) amount and radius when GI is active(Higher The Number The Darker And More Detail In Ground Textures
e_svoTI_SpecularAmplifier = 0
Adjusts the output brightness of specular component.If using full GI set to 0.
Adjusts the output brightness of cone traced indirect diffuse component
(0 is Dark ,Higher Number Lightens screen If Areas Are Too Dark When Full GI mode very experimental)
Constant ambient value added to GI .
Helps preventing completely black areas
If negative - modulate ambient with near range AO (prevents constant ambient in completely occluded indoor areas)
r_DeferredShadingAreaLights = 1
Enables/Disables more complex area lights processing.
Usage: r_DeferredShadingAreaLights [-1/0/1]
-1 prevents loading of area lights
Default is 1 (enabled) causes flickering
r_ShadowCastingLightsMaxCount = 24
Maximum number of simultaneously visible shadow casting lights.24 Light is Ultra setting and helps prevent shadow flickering with some settings.
Google Drive- optimized_graphic_presets Enhanced Edition with 19 AA Modes + Change Weather on the Fly and more