The cracks, they don't remove our protection. The cracks still have all our code in and all our code is executed. There is even more code on top of the cracked code - that is executing on top of our code, and causing even more stuff to be executed. So there is technically no way that the cracked version is faster than the uncracked version. That's simply a technical fact.
Going by that logic, there's simply no way that Denuvo does not hinder performance.