To say that it is a "bit slower" than an Aventador is very misleading. In a 0-60 straight line drag race, maybe. But that's not particularly hard to do (that's why Mustangs are cheap), and also not the point of any serious supercar.
Well Shelby GT350 is not particularly cheap at 70K yet can't touch those numbers either :). The point of serious supercar is to demonstrate the status of the owner :). If it was track performance then GTR Nismo is making majority of super cars look very bad and at 1/4 to 1/20 of the cost.