people people people. this is exactly why apple does these tiny incremental updates...because word gets out in the first 10 minutes that "this is snappier, that is fixed". it makes the customer think something must be better, and the stockholders, and the press. don't rush to judgement. of COURSE your backup is faster; you just did a friggin backup when you installed the update! come back in 3 days and see if it's still 90 seconds. if it is, I will eat a knit cap.