WHY IS THE GAME SO LAG?? DELAY DAMAGES AND ITEM USAGE I CANT PLAY SMOOTHLY,, ILL ALWAYS END UP DYING ON DUNGEONS THOUGH MY INTERNET CONNECTION IS STABLE .. T.T

You should get better internet then.
Sure there are spikes here and there, but it's gotten way better, and rarely does it ever cause death for me. If anything, it just makes it annoyingly harder when you take delayed damage for no reason after you clear a room.. but it's rarely ever the reason for death anymore.