Quite, BobH. Speed is a function of skill, and skill is the result of practice. No point in speed for the sake of it.

That said, what I liked about the video (and the reason I posted it here) was that it demonstrated how - (BIG CAVEAT COMING ) if you are practiced - it is perfectly possible to get a reasonable shave in under 5 minutes, or even under 3, without reckless rushing, which is what the OP wanted to know. So it all comes back down to practice.