Agreed, Zoro wont just stand around but he isnt known for his movements is he? Of course, its more complicated and thats the point. The fight can go either ways so there is no way to conclude Zoro will beat Luffy.
The way i see it, Zoro battling a quick moving opponent will be a challenge. It is harder to hit someone when they keep moving which is why i see King as an excellent opponent for Zoro.
Agree, I didnt say it as a definitive thing, just my opinion that Zoro would probably win.
Well, from what we saw in the past, he didnt really have an issue with fast moving opponents because he doesnt have to move. The issue came from high attack speed, for example, Kaku's 4 sword style has beaten Zoro's attack speed and Zoro took damage because he couldnt keep blocking 4 swords completely while he had no issue at all with Kaku's Soru movement.
In a fight with Luffy, only the attack speed of Snakeman would present an issue, imo but as we saw, that form lacks power so he wouldnt be taken out from those hits that easily and he can always try to slice against those attacks which would hurt Luffy...