The main differences between normal poker and zoom/rush is that you won't get good tracking values for vpip/pfr etc. until you've played a hell of a lot of hands.
Also you need to be expecting people to be playing tighter than usual as the boredom waiting for strong hole cards some players face playing normal poker isn't there so they'll much more happily fold hands which they perhaps would've called with normally.
Finally as someone mentioned above lots of players aim to steal blinds etc. so 3betting from the blinds (with fairly good hands) to a raise from the BTN or SB often results in them folding. This also relates to what I said about people not being as protective with their hands, due to them seeing more hands/hr they're more happy to fold more hands to raises.