Lmaoo wasn't Zoro not even giving many fucks even after he woke up and was like "Oh Shushui, yeah its aaight, imma go get it later"?
Adrenaline rush was against Killer. Once he cut him he relaxed and passed out.
Doesn't change the fact that Zoro in Thriller Bark embarrassed Luffy endurance wise and endured internal torture for hours.