Hexxit menuscreen extremely laggy

[TheMCGamer]

Hey guys so for a long while I've been playing hexxit but every so often it would randomly crash while I was playing with my friends due to not enough memory. I got fed up and installed 64 bit java successfully which I was really happy about. I decided to try out hexxit with 2 gb and the new java but now everything I open on technic is extremely laggy in the menuscreen so much so that I can't even click create new world or connect to any servers.