Changing graphics detail

Custom graphics settings:

backup and change your "Children of The Khorne\Engine\Config\BaseScalability.ini" file and paste over all the values you know you cant run with the lower values such as "*Quality@0", for example:

[EffectsQuality@0]
r.TranslucencyLightingVolumeDim=24
r.RefractionQuality=0
r.SSR.Quality=0
r.SceneColorFormat=3
r.DetailMode=0
r.TranslucencyVolumeBlur=0
r.MaterialQualityLevel=0 ; Low quality
r.SSS.Scale=0
r.SSS.SampleSet=0
r.SSS.Quality=0
r.SSS.HalfRes=1
r.EmitterSpawnRateScale=0.125
r.ParticleLightQuality=0

[EffectsQuality@1]
r.TranslucencyLightingVolumeDim=24
r.RefractionQuality=0
r.SSR.Quality=0
r.SceneColorFormat=3
r.DetailMode=0
r.TranslucencyVolumeBlur=0
r.MaterialQualityLevel=0 ; Low quality
r.SSS.Scale=0
r.SSS.SampleSet=0
r.SSS.Quality=0
r.SSS.HalfRes=1
r.EmitterSpawnRateScale=0.125
r.ParticleLightQuality=0

this should get you lots of extra FPS even on weak systems (tested on an integrated GPU laptop from 2011)

If you're getting 30FPS near minimum requirements and find it jarring swapping between higher fps you may want to add a custom  higher resolution so it evens out the FPS to 30 or use a program like Rivatuner Statistics Server to limit the FPS to 30 or 40. Although the implementation of foliage is efficient, the draw distance needs to be high for the flat open swamp environment, which makes the game CPU heavy.