It would help us to know what specifically is meant by “the regulator performs better.” As in the gauge settles to a more consistent pressure, or you observe better accuracy, or...?
FWIW I have the regulator on my .22 set to 1700psi, and the hammer spring did not have sufficient adjustment range to back it off to the velocity knee. The result was excessive muzzle blast and mediocre groups. Removing one coil from the spring allowed me to get it adjusted to about 97% of max velocity. Air usage is much better and groups improved noticeably.
Also, the Avenger regulator is notorious for scattered issues with pressure creep and elevated output pressure when the reservoir is charged to the upper registers (above 3500psi or so). Keeping the fill pressure down a bit masks these issues.