I enjoyed listening to your Rondo, although I cannot recall having heard it before. It seemed very well performed. I haven't played any Mozart in decades. It's always been my impression that pianists with smaller hands are more successful in rippling through Mozart's passage work, although yes, I'm fully aware that Rachmaninoff had no difficulty playing Mozart, and that you too have larger hands. The other problem I had was running out of fingers!
Anyway, those are my excuses.
Again, very fine playing on your part.
Concerning the andante tempo: A couple of things about a rondo--first, as you know, there is a matter of form, and that is that there be a dominant melody that alternates with two or more episodes. Second, by tradition, because a rondo is supposed to be joyful or playful, those moods do lend themselves to tempos faster than moderato. (I think immediately of the rondos in so many of the last movements of the Beethoven sonatas, for example.) Still, what must govern the composer is the interplay between the dominant theme and the episodes. There is probably more discretion concerning tempo which arises not by rule, but more from common practice and even general expectation as well, but is not binding on the composer. If the mood is more reflective such that a lyrical andante will be required, as long as the more overarching matter of form is observed, then the tempo deviation within the form would, in theory, be OK albeit it unusual. That's my own take on it anyway. It would be far more interesting if we could hear Mozart's views on the matter. It could be that he just wanted to be more daring in this work.
Concerning the recording, I think the revised Gaveau in tandem with the Tascam provides a wonderful result in this music. It doesn't get much better than that.