CrushFruits

I am trying to use minehut however im running into some severe issues. When running and jumping in creative, I seem to randomly fly for no reason and movement is choppy. Whilst attempting to fly I just randomly stop flying and fall back to the ground for no reason and for some reason, im able to see chat outside of my server. Im mainly concerned about the latter since I think the rest is to do with lag. Is there any solutions for the chat or anything else listed?