Jeff would like to know how to speed up his Mac. Leo says to try starting up the Mac in Safe Mode and then go into the System Preference pane to see what's starting up in the background. Jeff can also try zapping the PRAM (Command + Option + P + R). That can make it run faster. He should also browse his System Extensions folder.
Jeff should log into his unused Administrator account and see if it runs faster. If it does, then he'll know something is running in his account that's slowing it down.