When I play, an odd kind of lag gradually appears. The game runs smoothly under other circumstances, but when anyone fires a gun (swords are alright, bombs unknown), blocks break, enemies spawn or die and with some enemy attacks (usually ranged ones) the game lags horribly. At first it's bearable, but after around 5-8 levels of exploring I cannot fire a shot without experiencing a second of lag. Restarting the client fixes the problem temporarily.