In science fiction stories, we often see the use of virtual reality, a 3d world that allows you to actually 'be' there. The writers often use a pod or helmet to signify the use of some sort of computer that reads and sends information to the brain. What many, if not all, of them have in common is that time is sped up. If it isn't double then it's triple or much more. Now, while this is science fiction and far removed from any real basis, I'm curious. Is it possible to speed up brain in such cases? I.e. Would we be able to make time move faster in a virtual space?
My gut, deduction, and the meagre amount of information I found online, says it's impossible. I know very little about the brain, but processing information at a much faster speed would force a much bigger strain on the organ, thus overtaxing it. Not to mention, if the brain could actually run faster, wouldn't it have it's own mechanisms for running faster, considering it would be quite the advantage when you want to survive as a cavemen against a lion that's in need of some breakfast.