HOW TO SPEEDUP MAC OS X MOUNTAIN LION 10.8.3
Whenever you install any software or applications onto your Mac, some Apps automatically set themselves as a startup item, which causes them to load up every time you turn on your computer. Those unnecessary Apps loading up on the background on startup actually slows down your boot up time. I would suggest you clear out those startup Apps from your startup items list. To do so you can find out what is listed on your startup items list by browsing to Apple Menu/System Preferences/Accounts/login Items. Clear out those startup items that you think you don't need to run on startup and be cautious of what you are removing. Otherwise some Apps might not work the next time you restart your Mac. To remove them, just select the item by clicking it and then click the minus button located at the bottom of the list. Finally click the lock to prevent any changes.
2. RESET THE SMC (SYSTEM MANAGEMENT CONTROLLER)
The SMC can cause problems related to your Mac built-in fan, lights, video display, power supply and general performance & functionality. So by resetting the SMC it can help to speedup your Mac OS X. To reset the SMC, just follow the following steps.
1. Shut down your Mac.
2. Plug in the power adaptor onto your Computer.
3. Press Shift + Control + Option keys and the power button at the same time.
4. Release all the keys and the power button simultaneously.
5. Press the power button to turn on your Mac.
3. CLEAN YOUR HARD DRIVE (FREE UP STORAGE SPACE).
Your hard drive space when full can cause your Computer to slow down and eventually fails. No matter how big your hard drive is, someday it is going to be filled up if you are not careful. Especially these days most users tend to keep photos image files, music files, videos clips, etc that actually takes up hugh space on your hard drive. The next thing you should do, is offload all your music, movies and photos files to an external hard drive. In doing so, you can ensure that your hard drive will not be filled up and slow down.
Mac OS X Mountain Lion uses the free space on your hard drive as virtual memory to run efficiently. So if your hard drive is too full, it will definitely slow down your Mac. Regularly cleaning up your hard drive will certainly speedup your Computer.
With the increased amount of Internet browsing and downloading users do these days, temporary Internet files, cookies and history tend to build up on your hard drive which can actually slow down your Mac's performance too. I would suggest that you download and install iboostup App to clean those unwanted files. You can download the application from here: http://itunes.apple.com/us/app/iboostup/id484829041?mt=12
4. RUN DISK PERMISSIONS REGULARLY.
Disk permissions are a disk utility that helps to verify and repair your disk for permission differences. In Mac OS X Mountain Lion 10.8 or earlier version, when the user run disk verification or repair disk permissions, Disk Utility searches and reviews each of the .bom files in /Library/Receipts/ and compares its list to the actual permissions on each file listed. If the permissions differ, Disk Utility will report and list out the difference (and corrects them) if you use the Repair feature. Running disk permissions regularly will definitely ensure that your Mac runs smoothly, efficiently and error free.
Most Mac users tend to download a lot of free applications and games to review and try out. Usually after a while, most of the Apps and games that are downloaded onto your Mac are not useful anymore and left in your system which takes up space. Regularly checking and removing unnecessary Apps that are not needed will help free up your hard disk space and boost up your computer speed. I would suggest that you download and install AppCleaner 2.0.5 to uninstall any applications that you do not required. You can download the free application from here: http://en.softonic.com/s/trash-app-mac:mac. This Apps help to clean up all unnecessary or related files that are left on your Mac whenever you delete any Apps from your computer system.
6. MINIMIZE MEMORY INTENSIVE APPS.
Mac OS X Mountain Lion has integrated several features which are not frequently used by most users. This feature includes Speech Recognition, Bluetooth, Internet Sharing and Universal Access. If you think you do not use these apps on a regular basis then it is better to disable them as it will save some of your CPU resources and Ram memory.
7. DISABLE UNNECESSARY DASHBOARD WIDGETS.
Dashboard widgets consume both real and virtual memory. You can reclaim this resource memories by closing or disabling non-essential widgets on your Mac to improve your computer speed. To disable or close any unused widget, just follow the steps below.
1. Open Dashboard
2. Press and hold the Option key. Then move the mouse pointer over a widget you wish to close.
3. The widget close button (X) will appear in the upper left hand corner of the widget.
4. Click the widget close button (X) and you are done.
Hope the above tweaks can help you to speedup your Mac.