+1 what Dan and Ken said.
When I need to track (with OZ6 on my master buss), I shut off/disable the buss effects bins until I'm finished tracking. Usually, that isn't long. Then I can re initiate them. This might be a little bit of a pain if you want to hear it closer to finished but it isn't a bad workaround.
Another thing is most mastering plug ins will have some sort of "delay" inherent to them. Try to steer clear of them until you're ready for the mix stage. It'll save you some headaches.