Another thing that makes it fast is that it has aerodynamics over the front and rear wheels, not big drag producers with the tires at the top hitting the wind at twice the speed of the car.
Another thing that hurts F1 cars is the open cockpit. That creates tons of turbulence. The F1 cars are light and gave good HP so that helps them. Their drag to downforce ratio sucks compares to a WEC or IMSA Prototype though.