Khalil's_Black_Excellence
The King of Fighters
That's true. You have to have a 10-15 minute detour per tartarus run in P3 to upgrade personas and it's more on the fly in P4 and 5.
As a result I ended up not even wanting to deal with upgrading persona's much in the later games, I'm usually a completionist but in persona I only upgrade as much as I need to, to make sure the game is manageable, but I don't mess around enough with the system enough to the point where I'm OP for each dungeon.
I'm usually pretty OP and I don't outright try to be. Just how I play games makes it that I'm almost always OP in RPGs cuz I kill everything on sight.