Not sure what you mean by "much" faster. Most of the benchmarks have fractional differences. I think comparing an Apple only, commercial program, to a free and open source multi-platform program, VirtualBox would "win" for a lot of people, because it's not just about benchmarks.

> And what's the point of comparing the performance of an Apple only, commercial program, to a free and open source multi-platform program.

If I have a Mac and need to virtualize things, 'free and open source' doesn't really matter.