Yeah, it's been a while since I cashed in a tourney that was big enough to have a cash bubble before the final table, but from what I do remember, it seemed rather simple, and with no advantage to slow play.
When it got near the bubble, every table would play one hand, then wait for all other tables to finish. If nobody busts out, play another hand, etc.
If more than one person busted out so that one (or more) would be the bubble and another (or several) would cash, prizes were awarded based upon the player's starting stack. Should two players have the same starting stack, then the prize goes to the player with the better hand. I suppose in the unlikely event that two players bust out with the same hand and same starting stack, the prize would be divided.
Are you running tournaments differently, where an incentive to slow play exists?
Then again, this is how we do it in the league where I deal and am the Rules Guru, so maybe my memory is faulty.