How long does the Potenza procedure take exactly?

I'm trying to book a reservation at Potenza this week, but my schedule is really tight after work, so I'm going to calculate the costs.

With regenerative care and anesthesia before and after, it seems like I absolutely have to set aside a whole hour and a half. Honestly, excluding all that waiting time, if we just count the actual time the doctor spends applying the machine to my face, how many minutes does the Potenza treatment take? Does it take more than 10 minutes?

I hear that some places just quickly smooth it over and finish in about 5 minutes, while others are meticulous and spend over 15 minutes carefully working it out, switching tips each time. I can't quite tell if this varies from clinic to clinic or if the Potenza procedure itself is just on the shorter side.

Since it involves inserting a needle and emitting high-frequency waves, I'm worried about the pain if it takes a long time.

I don't need any waiting time or anything like that. If those with experience could just let me know in the comments the actual time it takes to sit face-to-face with the director and run the Potenza machine, I think I can make a schedule.