AirTact trigger fine tuning article:
https://michaeljbernard.wordpress.com/2019/03/23/2019_03_23_airtact_trigger_adjustment/ PCP's I have, 2 of them, both Hatsans. Neither have any mods done to them, both stock from the box, both shoot 39-40fpe. Overkill in many cases since most of my shooting is 30ish yards and my springers will easily take most small game aka squirrels, rabbits and such.
PCP also opens a new can of worms since you'll have to spend more money on some way to fill it, whether it's a hand pump or some kind of compressor. For mine, I have an air tank an area fire supply company fills for me when I need a refill.
Not a thing says you can only have one or the other and many do along with CO2 and pumpers.