A lot of people seem to be having problems with Minecraft using too much CPU power. I wish for my Minecraft to use more CPU that it does now.
Some Info: I have a dv7 laptop with an i5 quad core 2.4 gHz chip, 6 GB of RAM, and a Radeon HD 6770 graphics card. Basically, this computer is quite the beast. It can play Eve and other high-tech games. But it plays Minecraft slower than my brother's computer, which is dual core and equipped with a low-end graphics card. I asked him to open his task manager and found he was using 60%, if not more, of his CPU to play Minecraft, exceeding his performance.
Question: How do I enable my CPU to use all its cores and CPU power on Minecraft?
Another question I would also have would be, why is my brother's computer playing it faster? It kinda pisses me off.