This post is a year ago....
Popoj0 if you haven't already joined the discord, I'd recommend doing that, aside from your PC specs and the game settings part, there could be other things at play, and I'd recommend dming on discord about that information, Where I can either look at your save file and see if it needs fixing/tweaking or tell you about what I would've been doing myself, so you can do it for yourself, however that information partially includes.... sensitive.. information, hence recommending DM instead of public discussion.