Easy Modification...
The software engineers at AB simply need to add one more cockpit-adjustable dial on the A330. Call it Responsiveness; no words or numbers necessary, just two icons at the 1 and 10 positions: Position 1 (least) can be represented by the outline of a whale and 10 (most) by some slick fighter airplane, perhaps with the canopy half blown off.
Please forgive me if my data are stale: A320 series includes Ejection Seats, while the A330 series do not. The other differences are trivial.