The online is way way better than mk9. I don't think there is really any lag. The game flow and gameplay feel the same. I do notice a slight input delay in combos though. But it's online you can't expect it to run like it does offline. Online will be a great training tool for this game. I think it will be very minimal in crossing over from online to offline
Xbox 360 runs way better as well
Xbox 360 runs way better as well