Well, you see, he's played it so many times now he gets bored, so he plays it faster to finish it quicker. Except at the end, when he remembers he's getting paid by the hour, and slows it right down...
As you can plainly see - we 'oversteered' right at the start, had to move him left to hit the first volcano, thus taking more time to turn him right. He should have hit the first volcano and then been turning right.
I don't think people got my joke at the end...