The author of that video is me. Its not so easy as it looks.
First, the magic carpet phenotype doesnt match, so I needed to modify the Z position of it, so its a new phenotype.
Second, I had to simulate accelerating and I had to use NWNX for that and modify base PC speed.
Third, speed movement is not changed while PC is moving from one waypoint to another, so in order to increase speed between waypoints I had to make lots of them.