When running in a area, I've experienced sudden FPS drops (0-10 FPS) and it stays that way until I've backed out the area where I first got the FPS drop. It seems that it completely freezes the game for a split second, then 10 FPS then freeze and so on.
Here's a clip of the occurrence, however this clip is not from me, and my frame-rate seems to be lower than what you see in this video and I also have audio "cuts" during that period: https://clips-media-assets.twitch.tv/24206975648-offset-18972-854x480.mp4#t=0
When I get into this scenario it usually takes about 30-60 seconds before I've been able to fully stop my character and then move backwards again (to get out of the "zone")
I play the 64bit version of DayZ, so I know it happens on 64bit (I've heard people playing on 32bit having the same issue I can't confirm this though)