Where is it said that it is clumsy?
It is literally the opposite of clumsy lol
It is supercharged coc
That is the only reason he is in danger of dying when using acoc
Other acoc users don't run out of haki and are not at risk of dying because of it's over use
So, when zoro is using acoc, he is using a higher version of it because emma is taking too much from him and converting it into potent attacks
Thus, what scarred kaido was a supercharged acoc asura, and what beat king was a supercharged koh