Like seriously, let’s examine the facts:
Puss could fight enemies who are obviously stronger and/or bigger than him
He once resisted the Bloodwolf’s power.
Puss’s power is his personality. Puss’s personality is so strong that it clashes with San Lorenzo’s magic and almost caused the end of the world.
The evil version of him managed to single-handedly take over the Netherworld, which is something not even the Bloodwolf could do. Meaning Puss could’ve been a bigger threat to San Lorenzo than the Bloodwolf, let that sink in.
Now imagine if Puss’s power was an active ability he could do, like he gets superpowers because of this. Imagine how terrifying he would be. If the third PiB movie has Puss get mind controlled and turn evil, almost all the Shrek characters would be shitting their pants. Puss would’ve wiped the floor against Shrek, Fiona, Donkey, and Dragon. I’m pretty sure Puss could beat Dragon in a fight since he once single-handedly slayed a dragon. The 4 of them would’ve possibly began to fear Puss.