How long does the Potenza procedure actually take, excluding anesthesia?

I consulted a dermatologist about enlarged pores and redness, and everyone highly recommended Potenza. I heard there are many different types of tips and the results are great, so I'm considering getting it done. However, since I'm planning to make a quick stop during the evening clinic hours after work, scheduling is a bit tricky. Usually, when I ask, they just tell me to allow a generous hour and a half for everything. Honestly, excluding the time to apply the numbing cream and wait, how many minutes is the actual Potenza procedure itself—where the doctor holds the machine close to my face and works the needle?

I'm also curious if it takes much longer if I use things like skin boosters along with Potenza. I think I need to intuitively know the approximate laser firing time to figure out a timeline for after work.

Also, does the treatment time for Potenza vary significantly depending on the tip type or the number of shots? I want to avoid treatments where they just quickly rub it on a few times and finish, so I'd like to establish some standards.