If you experience "stuttering" (sudden frame drops) rather than just low FPS, your shader cache might be the culprit. Search for in Windows. Select your C: drive.
Check and click OK to clear it. The game will rebuild these files more cleanly the next time you play. days-gone-fps-boost-for-low-end-pc-lag
The quickest way to gain frames is to adjust these specific settings, which have the highest impact on performance: If you experience "stuttering" (sudden frame drops) rather