Thx Vince and @SergeOfArniVillage for your compliments! I have to admit that I have never read through Vince's tempo markings for this one (sorry for infringing your absoulte authority as the composer haha), since as I've said in my comment, I feel like the tempo should be faster to make the piece funnier, and I'm happy my playing helps bring out the good, or the "charismatic mischievousness" as you say!
But playing in a faster tempo does make some passages more dificult, like the wide leaps of LH and the unpredictable pattern in both hands. That's mischievous!!
I will be continuing to play Vince's preludes for sure since they are lovely.
Henry