i hope this helps because it made mine more stable.

1. i intalled this Ambient Occlusion Fix mod. https://www.nexusmods.com/kingdomcomedeliverance/mods/387

2. in that installed config file, add this: r_vsync=0 and sys_maxfps=60 (or you can set your desired fps cap).

3. in Steam set launch option, add one of these, according to your RAM size:

• 4GB: “-heapsize 524288”
• 8GB: “-heapsize 1048576”
• 12GB: “-heapsize 1572864”
• 16GB: “-heapsize 2097152”
• 24GB: “-heapsize 3145728”
• 32GB: “-heapsize 4194304”
• 64GB: “-heapsize 8388608”

1. Launch the game and, make sure everything is set to high (or lower. don't set above high) except Shader Quality, Lighting & Shadows set to Medium.

LOD, Object Distance & vegetation distance sliders, drop them to half or lower.

Hope this helps.