Originally Posted by jsmeeker
Lots of people think Safari is just slow, overall. Many of them just use another browser (like Opera, for example), and are pleased with the performace boost they see.
Safari generally gets very very slow after a while because of the cache
of all the website icons. I find that it helps to 1) QUIT safari and then
manually delete the icon cache from a terminal window:
rm -r ~/Library/Safari/Icons/
Another known Safari slower are the cookies. Delete all cookies to also
make stuff a bit faster. (You'll loose all your 'remember me' settings
though!)
Kim