There is no fast way of wielding the long sword. The long sword should be wielded broadly, and the companion sword closely. This is the first thing to realise.
According to this Ichi school, you can win with a long weapon, and yet you can also win with a short weapon. In short, the Way of the Ichi school is the spirit of winning, whatever the weapon and whatever its size.

Go Rin No Sho (1645) - The Ground Book