DD was slow compared to a lot of other racing games...
That didn't stop it from being more fun than almost all of them :D
Although the online aspect has something to do with that...
Online aspect? All it really has is LAN mode, and the only solution I had found to get it online was Warp Pipe, which sucked.
And incidentally, DD may be slower than F-Zero :D, but I found it faster than other Mario Kart games.
I thought he was talking about Mario Kart DS. My bad.