I personally have not had a lot of performance issues with the base RimWorld game after a patch that was released targeting performance a year or two ago. Much

I personally have not had a lot of performance issues with the base RimWorld game after a patch that was released targeting performance a year or two ago. Much more often it’s a poorly optimized mod that causes issues. I don’t often play very far into the insane late endgame though (200+ colonists/raiders on the map at once etc). I could easily see it being a problem at that point.