Usually I don't complain about lag, but this really does have a lot of it. Its an AMAZING game, but even after turning quality to low, closing extra windows, going to high-performance power usage, AND going into pop-up, I still lag. At around level 15 it becomes nigh impossible to even play the game because there's a 15 second delay on everything.
So I really hope that an upcoming update will reduce the lag somewhat. Maybe if the dead bodies would disappear after a while?