I think she needs a few on block ports (66K, and PPPP+K for example), a good low move (Helena gets full stun game going for tapping your toes. Not saying she needs something that extreme, but just something to force low blocks some times and help in neural) 3P to become 3PP, a plus frame guard break or two (I might be crazy, but isn't Kasumi's equivalent a guard break?), and for 1P to be safe on hit (around -5) with more advantage off of counter hit (at least enough to get a combo of slip stun. Seriously tho TN? Idk if you forgot what unholy things gen fu gets off of slip stun, but +13 is atrocious considering that I can't even port off of it because it whiffs). As I said before, they put way too much emphasis on flashy combos, yet gave her no way to achieve them outside of absolutely outplaying the shit out of your opponent. This might be asking for too much, but she'd be damn good after it.
A part of me does enjoy how strategically I have to play tho. Idk if it's just the honeymoon phase (pun fucking intended) but, despite her flaws, I really enjoy playing her.
EDIT: Clarification.