After about 15 mins of doing anything my memory shoots to 30 mb or above and my FPS drops to 10 or lower from 75 plus FPS. I start with about 17 to 24 mb depending what addons I have on for raiding or farming.
I have no Virus or any problems with windows that I can find. I also have my CPU overclocked x2 atm. After the lag starts I can reload my UI via comand then it drops to normal then same thing again picks right back up to above 30 and reload again. If anyone knows away to find my problem lemmy know. I've also tried to single out each addon but I'm having no luck finding the one thats doing it.
You didn't list your CPU specs but I'm guessing you're highly CPU bound on that system. My old desktop had an A8N-SLI series motherboard (can't remember if it was deluxe or premium) and a dual-core Athlon 64 X2 processor and was severely limited by the CPU.
How do you know it's due to addons? Have you tried disabling all addons and playing with the default UI?