Let me help you.
Method 1, King can use his hyperspeed:
Method 2: King can use his magma dragon:
The rest of the fight cannot be identical. King is so impressive because he's fighting against someone who:
- Terrified two Yonkou.
- Cut Dragon Kaido and made him cough blood.
- Momentarily blocked Hakai
- Survived Hakai
- With 30 broken bones blitzed and scarred Kaido.
And that same Zoro became significantly stronger by unlocking Haoshoku coating and then taking things a step further by developing a new sword style ("En Ou Santoryuu").
If King fought someone else that had all these (or equivalent) feats not named Zoro, then yes, I would still say that he stomps Katakuri.
Even without the invulnerability his flames grant him, King can tank attacks stronger than the attack that scarred Kaido:
Kata does not have any prayer of hurting him.