Sure, I mostly enjoy riding slower these days.
Once upon a time, as part of my general physical training, some rides on certain routes would be pushed harder. Did a couple of ~half-century type distances with other riders at a pace north of 20mph, though those hurt (as I wasn't a serious rider).
Much prefer the ~7-12mph pace, these days, depending on the route taken. Helps me see things, to be part of the space instead of merely whizzing by, and gets me to the destination more relaxed. Of course most of my harder physical activity occurs in the gum, these days. The bike's mostly for transportation and enjoying the day.