You already have your answer, but I'll chime in and say YOU'RE NOT ALONE! Some rides I average 9-10, and on longer rides (my longest is 2.5 hours), I might average 7. This is on a flat bike path, and my Forerunner 305 "auto pauses" if I stop, so there's no stop signs, stop lights, trains or anything else to help me rationalize my slowness .

It's not easy, but you need to do what I'm trying to do, and ONLY MEASURE YOURSELF AGAINST WHERE YOU WERE LAST WEEK OR LAST MONTH. Nothing else matters.

PS. The shorts will help - ALOT!