And I'm not talking about lathering up and all preshave stages, I mean the actual shave stage, for a "pro" or long time user of straights that is.

I have used gilette mach3s since about 2000 when both my brauns died, and I can get a quite good shave in about a minute if I really wanted.
I think I spend about 2-3 minutes usually going over each part of my face about 10 times in different directions.

Of course shaving is not a speed contest and quality should come before speed of course, but I just wanted to know an approximate timeframe from long time users. Sure there are variables. There always is. But you can also include these.

Also is there a difference between kamisoris and regular straights? Is there a difference between different grinds of straights?