How long does the effect of Shrink Universe last, and how long does the procedure take?

I feel like my skin elasticity and jawline are sagging, so I am seriously considering a lifting procedure.

While looking into various procedures, I became interested in Shurink Universe, which is said to have less pain and faster treatment speed than the existing Shurink.
I would like to ask those who have actually received the treatment at a dermatology clinic or experts exactly how long the effects of Shurink Universe last.
How long do the effects usually last after a single treatment? I looked at online reviews and saw that while it varies from person to person, they typically last about 3 to 6 months.
I am also wondering if receiving the treatment 2 to 3 times in a row at one-month intervals initially extends the duration of the Shrink Universe to over 6 months.
Also, since I am a working professional and find it difficult to take a long time off, the duration of the Shurink Universe procedure is a very important factor for me.
I would like to know approximately how many minutes the actual procedure time for firing the laser shots takes, excluding the time spent waiting after applying the anesthetic ointment.
Based on 300 or 500 shots, does the procedure finish quickly enough to be easily done after work or during lunchtime?
Additionally, I am concerned about whether it is a procedure with no downtime that allows me to return to daily life immediately afterward, as well as the extent of redness, swelling, and pain.