At least twice as many hands per hour, probably more.
But that doesn't change the percentages.
I play a fairly conservative game, but I find that I consistently get a decent starting hand in 7 card stud a much, much higher percentage of the time than I do in real life.
I assume that everone else does, too, which leads to a much higher percentage of straights, flushes, etc. than you see in real life.
After 40+ years of poker playing, of this I am absolutely positive.