Hello, I started a FTB ultimate server for me and my friend to play on. I run it off of my computer, and we have played for a couple months. The framerate has always been low, 30 FPS compared to the 200+ that I get on vanilla minecraft. It has been dropping as we built things, to near 20-25 FPS, which is not very fun to play on. I had done some thinking, and I finally figured out that xycraft crystals were the source of the problem. They are all over the place, a complex shape, AND they have an animation. Is there a way to remove these crystals, or the entire mod, after we have started the server and built on the map?
(Also, am I even right about the crystals? Or are they not even the source of the problem at all?)