I too, average about two stands per hour, with driving and walking thrown in the mix. With lunch breaks and snooze time thrown in from 11-2, if I hunt a full day rather than just a morning hunt, I probably get in 8 or 9 stands.
I seldom walk more than 3-400 yards from my truck, many times far less. depending on the terrain and situation.
I usually spend 15 minutes on stand, sometimes less, far fewer times more. In my particular area,and my particular technique, 15 minutes is optimum.