Perhaps you don't know me that well.

I will have a pair of turbochargers providing a little "assistance" when necessary. When I travel to the mountains, I carry my atmosphere with me.

During cruise, the turbos are just idling in the breeze. Once there's a load on the engine they will spool up and start making horsepower.
The rpm will be a little low but if I load it at 2400 they might start to spin. That's on the bottom end of where they start working. That's why I like smallish turbos for a street car. The response is nice.