I strongly suspect moving the check to 0.1 will cause server lag and it'll likely be worst if you play in prime time. I've seen some pretty bad server lag on Monday in AK (e.g. Demon Wall casts Repel, doesn't take effect until 10 seconds later) and it must get a lot worse if you check 3 times as often. On the plus side, people not playing on prime time will certainly benefit from this change.