Hello, regarding skyfactory 2.5 (2.5.6) I was casually doing my thing in game, and I decided to start RFTools (Dimensions) I made a realized dimension tab, and put it in the world builder, after it reached 100% my game started to get so much lag when I was in the overworld, but when I went to another dimension in this case, The End, i didn't have any lag whatsoever. Its not FPS lag, its a lot like server lag, even though I'm on single player. I've tried playing offline and that didn't help.