Writing acts as transcribing as much words as possible that is like a creation mode. The goal is fast.

Editing goes the other way: focus on quality.

Structure the ideas (Islands and Bridges strategy similar to ones required at school.
Make clarity out of it.
Then provide a style. To do so, I diversify my vernacular, add colorful details, and give my writing rhythm by changing the length of sentences and the words inside of them.