Isn't it? What's fast for some people is slow for others. And what's slow for some is just right for the rest.
I remember going on a motorcycle ride a couple of years ago when I had my Honda and was just learning how to run the thing. The leader of the ride decided to go easy because we weren't in any hurry. It was a leisurely ride with no particular destination. I was relieved because I was afraid of curves and hadn't quite gotten the hang of leaning into them.
I thought the ride was led at a perfect pace and was even a little fast at times, especially on the downhill curves when I was inclined to ride the brakes or maybe even walk. Afterwards, though, one of the other riders thought the pace was a little slow and dull, especially on those downhill curves. Vroom.