Cope.
Feats against Kaido?
Zoro landed, what, one or two hits against Kaido, and the last several chapters confirmed he is still equal with Lanji.
But you think if Zoro hits Imu once or twice (like he hit Kaido, feats that you brought up) that would signify Zoro surpassing Roger?
Zoro would be lucky if Lolda stops treating him like he is interchangeable with Lanji, let alone surpassing Roger.