If your Mac is running slow, there are a few things you can do to speed it up and better understand what’s slowing it down. It’s not just that your Mac is old — although that is an important factor.

Mary-Elisabeth is an associate writer on CNET's How-To team. She's a recent graduate of UNC-Chapel Hill's English Department, and resides in Charlotte, North Carolina. On the How-To team, she covers a ...