Please ask the clinic what spot size, joules and pulse width they’re using. You have the right to know this info. It doesn’t make sense to guess at the numbers above and they wouldn’t have the spot size listed since it’s not adjustable on this machine. It sounds like 45J and 25ms, but just a guess.
It should take 45 mins to do half legs on any machine if they’re covering the area well. But generally, Coolglides have smaller spot sizes. Candela machines have 18mm spot sizes.
If you didn’t feel much, that’s not a good sign, especially if the hair is coarse. If it’s not coarse, it’s not unusual, but also means your hair may not respond. It needs to be coarse to be affected by laser as mentioned previously.