Originally posted by PsychaChi:

It better fix the instance counts with builds. Sick of building maybe a small 8k instance house with 2 floors and get 40 fps in it on lowest settings.

RTX 2060
R5 2600
32gb ram

I think, the constant simulation of the stability of building parts is quite heavy. I'm not sure how that affects fps, but 40 sounds quite bad for a rtx2060 on lowest settings.
Did you try any of these:
https://www.pcgamer.com/valheim-increase-fps-performance/
https://steamcommunity.com/sharedfiles/filedetails/?id=2390029674

I remember i had some performance problems until i tried those tweaks. (Linux, RTX3060)