Help to make my Mac faster

Once again your Mac will Run fast
Despite of applying all your efforts, if you are not able to speed up your Mac , don't worry. It happens to everyone.
Although there is no cent percent cure for making your Mac machine as good and fast as day one, but some basic things can help to reclaim disk space, remove some clutter and generally speed up your Mac.


Please mind the hardware of your Mac machine
Before you get started, keep in mind that none of these tips will change your aging G4 iMac into an Intel Quad-core speed machine. One of the best ways to speed up any aging computer is upgrade the hardware, so invest in a larger hard drive or more RAM if you want to make an old machine feel younger and more agile.
Another essential step before we get down to specifics is to run Software Update and make sure that you have the latest version of OS X and other Apple-supplied applications installed.
When your hard drive gets too full drive (and by full, we mean past the 90% mark) it can slow down your Mac considerably. But don't start deleting your precious family photo albums -- here are a few things you may not know about that eat up space on your Mac drive.

1. Take a hard look at your applications folder. Do you really need all those shareware apps you aren't using? If not, get rid of them and free up a little space.
2. Delete unused language packs. You probably aren't using the Farsi language localizations on your machine. Even if you are, then you can probably still get rid of French or German. Check out the freeware app Monolingual which makes getting rid of unused language files a snap.
   
3. Know what you're storing. Download Disk Inventory X (alternatives: Grand Perspective or Where's The Free Space), which will give you a nice graphical overview of what is using space on your drive. If it is indeed those precious family photos, consider moving them off to a USB or Firewire external drive. Or burn them to DVDs.
   

If you still have a question: how to speed your mac just go and see through!

Speed Up Slow Applications to speed up your Mac

These are some applications which are running slow on your Mac and due to which your machine is behaving slower. Some of them are discussed here.

• Safari -- Safari is fast and lightweight, but it can get bogged down if your browsing history is excessively large or if Safari is storing a ton of Autofill entries. One easy way to reset nearly everything at once is to select Safari > Reset Safari in the application menu, which will clear all your caches.
  

• Dashboard -- Dashboard widgets are handy tools, but they eat up RAM -- sometimes even when you aren't using them. This leaves less RAM available for the applications you actually are using. Head into your Applications Folder, select the Utilities Folder and look for Activity Monitor. Activity monitor is a great way to see what applications are using the most memory. If you see a lot of Dashboard widgets high up on the list, consider disabling them.
  

• Firefox -- If you're using versions 2.x or 1.x of Mozilla Firefox, you've probably noticed that the browser tends to take it's sweet time after it's been running for a while. Try uninstalling any unnecessary extensions. Reducing the add-ons you're running to about 3 or 4 will speed up most installations. Your best bet is switching to the latest version of Firefox 3.5, which shows substantial speed improvements over its predecessors.
  

• Universal binaries -- If you're using an Intel Mac, make sure that all your applications are universal binaries. Older software compiled to run on PowerPC machines will be noticeably slower on Intel machines. If there's an upgrade available, download it and run it instead.
  

General System Tips

• Clean Out Your Startup Items -- If you Mac is slow starting up, open your System Preferences and click accounts. Select your username and see what's listed in the startup items. Sometime applications will inject themselves here without asking (or even if they asked, you may not want them anymore). Getting rid of some startup items can speed up your boot time.
  

• Clean Up Your Desktop -- If your desktop is covered with dozens or even hundreds of icons, you may see your performance suffer. Mac OS X treats each desktop icon as its own window, which incurs a small memory hit. For most people this won't be an issue, but if you have hundreds of icons, it might help to move them off to another location.
  

The applications like Stellar speed up Mac are used to get rid of unused files and applications. This creates free space on your hard drive and thus pushes your Mac performance.