Quote from Dajmin :

They're racers, yes, but not drivers.

I think the main reasons they can be faster is firstly because they have no FFB fighting against them, so they can accurately hold the car on a curve. And secondly, they have the steering gauge to help them always know where to hold the cursor in order to take the curve at the best possible angle.

It makes me wonder how well the mouse drivers would do if that steering gauge was removed.

I am a mauser and i don't use that gauge, i simply look at the ingame stering wheel, to now where my wheels ar pointing