You verbatim asked me to ask google what “settling the score” means and that’s exactly what I did but you don’t like the answer so now it doesn’t count? lmao
A DEPRESSED Kizaru was able to blitz and defeat a Post-Wano Snakeman that fought Kaido.
As we’ve seen with Sanji, your mental condition affects your strength and will in One Piece. Kizaru has still never gone all out once in the story.