One, don’t add too many background apps. Two, get a fast SSD device for storage. Finally, get as much RAM as you can afford or that your Mac can have. Size matters and lots of RAM helps. If your Mac is low on RAM is there another way?
Clean Memory Clean
One of the most popular free utilities on the Mac App Store is Memory Clean. What it does is optimize the Mac’s memory by purging inactive memory that still uses RAM.
Your Mac is a smart beast. If you don’t have enough open RAM to run apps, it will use the Mac’s storage instead. Storage space might be cheap but it’s very slow.
Memory Clean simply tracks those apps which use memory, and gives you options to delete what’s using inactive memory so the Mac has more RAM for other apps.
Using Memory Clean is easy, too. Open the app. It displays in a pop up window how much free memory is available.
Then, click the Clean Memory button and it drops those apps which have inactive memory so your running apps have more RAM.
The Menubar icon also displays the full memory stats with a click. Otherwise, options are nominal. Change the Menubar icon visibility and font size, display in the Dock, start the app at Login, and set a threshold level or set to auto clean every x-number of seconds.
Not bad for free. The more RAM you have on your Mac the less Memory Clean will help.