Hi, I was playing with A Rimworld of Magic installed, and when I got to mid-late game, the game always became unbearably laggy. It took me a few hours to figure out, but I realized this was because some ice bolts / frost rays from the ice mage would get stuck in the air and send out an error message every tick, and when these stack, they cause your game to run at 10 fps at best. I don't know if you're able to look into this, but I wanted to let you know that this was a potential cause for major lag. I dev mode destroyed the ice bolts, and my game is running at 60 fps again.