Minecraft Realms broken after new update.

My realms have became extremely laggy with no way of fixing it. Ever since I tried out the new experimentals. I also used Actions and Stuff. Now everytime I go into my Realm and leave my entire Minecraft loses all of its textures. I even turned off Actions and Stuff (made it worse) and most of the new experimentals which didn't help. Even with a new world with nothing added it keeps breaking and lagging. Before this update, I could run a world with 10 addons. Now a single addon makes the lag unbearable. Everything is delayed too. When I hit something it doesn't register and the mob stops and floats. It even crashes my friends games and breaks the entire game.