The fastest way through a corner is by using 100% of the tires traction. Using any more than that will cause the tires to slide, and that loss of traction leads to loss of speed, or worse. That is why you will never see professional race car drivers drifting even in a short sprint race where tire wear is not as much of a factor. The only time I have seen drifting on tarmac outside of drifting competitions is in rally racing. On a very sharp hairpin turn the driver will have the car's back end slide out, just a bit to get the car pointed in the right direction.
"I drift not because it is a quicker way around a corner, but it is the most exciting way" - Keiichi Tsuchiya