How do people prolong Korayn's first strike buff?

Isn’t it a dps loss to avoid using any ae just to prolong Korayn’s buff? because you are basically only giving crit to your single target abilities. I wanted to know how it works in the rotation and how the rotation is changed by it.

You just use it. We frontload our damage so it’s not hard to take advantage of the window

You don’t really change your rotation. Its suggested that on large aoe packs you can aim your eyebeam to avoid missing one mob and then you get it a second time. But honestly I’d says its not necessary. Unless you’re trying to really push keys far don’t worry about it