The only nerf he got was that he wasn't with his blades
There's no indicator whatsoever that he wasn't in perfect shape to fight. Hell, he himself only mentions that "with my weapons you would of been dead". He doesn't say anything about his mental state, stop the cap
And Zoro was nerfed too, because he was with only two swords (plus he was hungry and poisoned). And on top of all that, he only got hit because of Gyukimaru's sneak attack but still managed to WIN