Kanna attack speed

If my Fan is "Fast" speed, and my booster increased speed by 2 stages, am I hitting at max speed?

If I increased my attack speed by 1 would I attack faster or is Kanna unaffected by attack speed modifiers like some other mages?

Thanks!

I believe all of Kanna's fans are Fast (4), so Booster will bring her to speed cap.

I see, thanks very much

Do add to this question. Using Mighty Shikigami Haunting is faster then Vanquisher's Charm correct?

Do add to this question. Using Mighty Shikigami Haunting is faster then Vanquisher's Charm correct?

Yes.