“If you’re running a lot of memory intensive apps at one time, then that means your Mac is trying to juggle too many memory tasks at once,” Bouchard writes. “This will slow down your machine.”
“If RAM is soldered into your machine, is to fight lightweight software alternatives,” Bouchard writes. “For example, try using Pixelmator instead of Photoshop, or iMovie instead of Premier Pro. Software with less of a demand on system resources will give your Mac more room to breathe, and therefore give it more speed.”
Tons more in the full article here.