Wouldn't an easy fix just to limit how many levitations she can do in a combo? Maybe cap it around 3. 2 if you want her damage to stay low. Though, considering it is against large characters only, 3 seems reasonable to me.
Don't get me wrong, everyone is entitled to their own opinion. I just like to bust balls. Now, I feel this game is fun at a casual level personally, but Guilty Gear will always be my fighter.