I’ve just got this game. I have same spec with you. But I played in 1080p.

I set texture quality to full, turn anisotropic filter to high, set image quality and lod bias to mid, set max lod level to unlimited, turned on vignette effect and z-prepass, all other effects turn off or set to lowest, including v-sync, motion blur and depth of field.I also installed special k mod and change some settings on nvidia control panel. Ultimately, I could usually get around 29 – 32fps at 1080p.

The graphic look good and the game run smooth. I have just completed shadow of war. Now, I am playing kingdom come deliverance. I may play this game next.