I think it was also predictable that Pac's output would drop.
About ten fights straight he averaged 800plus.
Two fights ago it dropped to about 600+.
Was it due to being clean? Or age catching up with him?
Either way it seemed obvious to me that Pac's days of throwing punches in bunches was over.

Could Pac had thrown more if the fight took place five years ago? Yes and no.
Yes because he probably was using something that enhanced his stamina, so as a result PBF would've declined without random drug testing.
Not testing with scheduled dates informing Roach and Pac..