Change core components

2

By now you should have a good idea of which parts of your current setup are coming under the greatest strain – but don’t run off to the Apple Store just yet. Although you might consider your Mac to be a sealed device, it’s not, and there are plenty of upgrades you can effect yourself.

If you don’t have confidence to crack open the case personally, an Apple Authorized Service. Bear in mind it doesn’t need to be an official Apple Store, either; the third-party stores recommended through that link are all authorized and overseen by Apple itself.