Device: 4S
Version: 1.9
iOS: 7.1
I use both zoom in, and zoom out. It freezes when I'm walking alone with no one on my screen(not slashing anything), and it freezes when there's a ton of players running around in towers(slashing around). So I'm not sure if the amount of players on our screen has anything to do with the issue. It could be a walking update(?) that messed it up or something related to walking. If i sat in the same spot for 10+ minutes, I wouldn't notice any screen freezing. It also freezes regardless clockwise or counterclockwise. Found a video on March 28, 2014 of me gsing with my partner. There was no lag freeze!