Are you measuring 10 PSI at the tip?
All guns take way more than that at the gun inlet to get 10 psi
at the tip like they advertise.
(My Astro takes 45 psi at the gun inlet to make 10 at the tip.)
I hope you're not measuring 10 at the gun inlet.
Read your gun specs to know what it needs at the inlet.
they vary a lot.