He wasnt mentally nerfed nor crying. Read One Piece instead of Two Piece.
"Wrong weapons" made him stronger lol. Which named move could he have used?
Nothing close about it. The strength difference was humiliating, he couldnt pull his weapon out of injured Zoro.
Killer couldnt do anything to Zoro without Gyukimaru's help nor did he knock him out, I told you to lay off the Two Piece.
Zoro is already a top tier, when you understand that, you will understand everything.