Ways to Speed Up Your Macbook
Apple Macs are quite efficient, but even a Mac can slow down just like any other PC. If you're having this problem with your Macbook, there are plenty of ways to repair the speed.
Rebooting the machine
This may sound very obvious and basic, but yes, some people actually leave their Macbooks on for days or up to weeks even. You should give yours a break. Just try it. Never put up with slow imac.
Closing unused applications
If you're using an older Macbook, you can really have issues when you run too many apps at the same time. You and your machine are better off closing all unused apps.
Using your activity monitor
Some people cannot handle the macbook running slow. The Activity Monitor, which you'll find in the Utilities folder, keeps track of all processes running in your PC. In the % CPU column, look for anything that's consuming a huge amount of resources. If you do find something and you're sure you have no current need for it, quit the process.
Minimizing your startup items
One of the best things you can do to speed up a computer, regardless of the operating system, is to limit the number of startup items. You can set which apps must launch at startup under System Preferences, Users & Groups, Login Items.
Deleting what you don't need
A hard drive that bursting at the seems is not a happy one. Go ahead and delete all unnecessary files or applications and then empty the Trash when you're done. Anything old but still important can be moved to an external hard drive. If you want to uninstall a program, simply drag the icon into Trash.
Installing an SSD
Junking the hard disk and fitting an SSD is probably the biggest speed-up technique from then till now. It's by far the most significant upgrade any PC might have.
Adding more RAM
Yes, if a RAM upgrade is possible, get it. Note, however, that while more RAM can make a substantial difference in apps that rely on speed, it may go almost unnoticed when you do general tasks. Read on from here: http://www.huffingtonpost.com/2013/02/19/apple-java-update-mac-download-security_n_2720300.html.
Installing a faster graphics card
Another hardware change you could consider is installing a faster graphics card than that which came with your Mac. But this only applies in certain cases where your Mac graphics card is not almost soldered to the logic board, which is rather rare.
Empty your browser cache
It's always a good idea to reset your browser so you can remove the temporary files and other browsing data. If you're using Safari, for instance, this is as easy as choosing Safari, then Reset Safari.
Speeding up your webpages
Aside from clearing the browser cache, you can also speed up your webpages with a spyware blocker. This stops bugs and other kinds of browser spyware from loading on each page you visit.
Running a malware scan
Finally, in case you inadvertently installed a Trojan on your system, it's always worth running a malware scan. Uninstalling Adobe Flash plugin and Oracle Java can help reduce your Mac's chances of getting infected.