Low Memory Usage Add ons

I have a old computer,Its so old I still have a AGP video card. I am trying to find as many low memory usage add ons as possible. Back when I was raiding BT using a ton of add ons I would get about 6-7 fps in BT. I have upgraded this computer as much as is possible within reason, RAM, Video card and taken as much off it as possible. I currently get enough FPS to not lag very much, usually less then 20 but more then about 13. I am wondering IF any one can point out some add ons that are low memory add ons. I raid frequently and need all my riding add ons such as Omen, DBM, vent and my UI (currently using AGUNITFRAMES ) I play a mage so I also have Magealert for my procs and such, I also have several other add ons I cant think of atm. So please any one that can help please do.
Not much, but oUF is lighter weight than AG UF - a small start.|||gathermate instead of gathererpMinimap instead of anything elseperfectbar instead of dominos (although its a little confusing to setup)dockingstation & brokers instead of fubar and fu-pluginsclique, oUF & oUF_FreebGrid instead of grid and/or healbotcork instead of zomgbuffswow-pro.com questing addon instead of questhelper or carbonitetiptop instead of any other tooltip addonthree lines of code instead of any viewport modCode: