No surprise here. There's no big game for the ps5 pro. Most of the games that get a real advantage, people have already played through to 100% so there's no real incentive to play through again for slightly better framerates. New adopters may be picking up the pro, but again, there's been no big releases to draw new customers in the recent months.
It seems the biggest advantage comes to the PSVR2, but Sony did what Sony always do with premium hardware addons and forgot it exists.
People are suffering fatigue from these planned upgrade consoles. It's only real hope is GTA6 and by then, everyone is waiting for the PS6.
Makes me wonder if a console solely based on time limited exclusives can survive the market moving forward. Microsoft have changed gameplans to not use the xbox as its main platform, and Nintendo have full exclusives, not limited.