Microsoft Guy 1: hey we can throw in this great new graphics engine with really cool lighting effects!
Microsoft Guy 2: Uh, sounds good. But won't that make the game run a dismally slow 30 fps?
Microsoft Guy 1: But it'll have great graphics!
Microsoft Guy 2: Uh, but when you're supposedly driving at 180 mph, wouldn't the extra frames be helpful when negotiating turns? Won't they crash?
Microsoft Guy 1: People won't care when they see the graphics!
Microsoft Guy 2: Brilliant!
Microsoft Guy 1: Brilliant!