I have an older system and I am always on the lookot for little tweaks to gain some more performance out of my system. If you have a dual or quad core, these tips might not be of interest except to pass on to your friends with lesser CPU power.
- Use wireframe instead of rendering windows
gconftool -2 --type bool --set /apps/metacity/general/reduced_resources true
This command will not work if you are using Compize but if you are you most likely don't need it.
- Force menus to open faster
Don't forget to reinitialize xserver by using Ctrl+Alt+Backspace. Your menus will pop open a bit faster with this tip.
This isn't a complete list by any means. If you have a great tip please share it in the comments.