I hadn't noticed. but I have no real comparison since I was on Linux long before starting either title, so I've never played either on Windows.
They seem to run well enough, so even if its faster on windows and that's the tradeoff for having no Windows in my house, I'm cool with it.
Wherever they go, Tim Horton's Beiber-bites eventually follow. So yeah...in this case I'd agree with that assessment.