I've a Dell here Miss B. An older tower. The option is available to me. It is also shows on a new machine I;ve built. It could be that it won't show on a laptop because it's purpose is to slow down battery use irregardless of your machine make or model. The only laptop here is a Linux box so I can't check that idea out. Both towers were set to Balanced after the last updates. I have changed that and there is a noticeable speed increase on both machines.