That I don't know.Not that much. What do you think you would have to limit a typical EV to, in order to get 600 miles of range out of (say) an 80 kWh battery?
But I do know that if you were to take two identical EVs with the same charge to the Nordschleife, drive one around it sedately and the hammer the other one round on the ragged edge you'd cover the same distance but the 2nd one would have used more charge.
Ergo there is the potential to extend the range of a car by limiting its performance.