Based on my own experience, I'd say circumcised ones get more "travel" more easily. With a foreskin in place, there is so much rolling and wrinkling and gliding action between all sorts of layers that you just don't get that straightforward "piston experience", and especially not at the same speed. And I know women tend to enjoy things fast at the right time. That's where I was never able to deliver with the skin on, also because things can get sore more quickly with all that.
I definitely used to be slower and more concerned about not hurting myself before the circumcision. Now though, my confidence in the "tool" is much higher, and that translates directly.
Some people’s opinion one simply cannot change. Mine, for example.