I've been playing in a server with my friends, and when I try to join the same world, but in single player, I get ridiculous low FPS, it goes up, and down every second. That doesn't happen in the server at all. Specs are : Intel i5-6400 8GB Ram, GeForce GTX 1050 Ti. Please help.     Oh and also every time i tab out and tab back in, theres a chance it might crash. Here are all the crash reports :)