How to make the computer faster?

I got a small problem. My computer is quite slow but is not as slow as most school computers. How do I make it faster?( and I'm talking about both internet speed and non-internet speed) I all ready tried the disk cleanup and disk defragmenter but is still quite slow. Are there any other ways to make it faster?

If you use Firefox, type about:config in the address bar.

Under filter, type in pipe. Right click the 1st value and select toogle, Right click the 2nd value and type in 100, Right click the 3rd value and click toogle.

To make it startup faster >> Start >> run >> msconfig >> startup tab >> uncheck anything you don't need.

Uninstalling softwares you don't need can speed it up too.

Download and run ccleaner to clean out the temp files.

http://www.filehippo.com/download_ccleaner/