If you could just like please back that up with some sort of measure, some sort of proof, besides just a cursory evaluation... I would LOVE to start collecting all of the newest products coming from M$ developed with VB.NET (That's Visual-Bloat) or C# (That's "Chrikie I need 4 TeraBytes of RAM to boot the title screen fast" Sharp).
I'm not sure what you mean, but the only proof I have is this: On full settings (but no AA and at 1024x768) Microsoft Flight Simulator 10 runs at less than 15 frames per second on my GeForce 7800 GT, Anthlon 64 3700, 1 GB RAM, computer. That's proof enough I would think.
P.S. I also remember watching a youtube video where someone showed how his new 8800GTX ran MSFS 10 at a awsome 20 FPS!!! (I'm not sure about the actual value but it was really low, especially considering it was being run on an 8800GTX)