(Not an Apple aficionado? Check out Popular Science’s guide to improving the performance of Windows machines.) These adjustments won’t be immediately obvious, but they can give macOS a new spring in its step. Luckily, a few tweaks under the hood can rev up the performance of your MacBook, iMac, or Mac Mini. After a few years of use, even the best machines just don’t run as smoothly or quickly as they used to.
