How to make your laptop go faster for free

If your old laptop needs a little more pep in its step, there's an easy fix most people overlook: the performance settings. These settings reside in most laptops, usually via a preinstalled utility. The vast majority of laptop users never poke around in there--and you shouldn't need to, if all you do on your laptop is email, web browsing, and mainstream productivity applications. But if you want to try your hand at a bit of light gaming, or you're tinkering with Twitch streaming or video product...