theoretically, larger diameter means larger moment of inertia. so even for the same ratio, the car should feel a bit more sluggish in terms of acceleration and deceleration.
of course, one may argue that the mass of pinion and spur are not that large and so the impact may be minimal.
btw, i am not 高手 here... i just bot my first 12仔 yesterday, which is an XRAY X12