Put simply No.
However the temperature of the air will offer a slight variance in output.
The difference I wouldn know but I remember reading that a target tart on another forum looked into it.
From what I can recall the variation was marginal. Nothing to loose sleep over in the normal world
If you load a consistent volume of air into a sealed space and release it. You should get the same out. As per the sweet spot or reg allows. Blah blah.
I would recheck your zero. Barrel. Silencer etc.
To say it's serviced regularly by a gunsmith means nothing mate. Lol. I bought