I use a lot of addons. I was wondering if some of them might conflict with each other. When I raid my fps drops to 2-5. I know it's my addons and not my computer, please don't suggest it's my computer. These are my addons:

ag unitframes, atlas loot, bagnon, bayi's extended quest log, bejeweled, cartographer, chatMOD, clean minimap, cyCircled, doom_cooldownpulse, eepanels2, eqcompare, fubar, gatherer, lootdb, mobhealth3, move anything, omen2, omniCC, prat, quartz, rating buster, recount, SCT, skinner, tiptac, questhelper

I have updated them all recently. I have also tried disabled large addons like cartographer and questhelper but the low fps persists. Does anyone know if any of these addons conflict with each other or may be causing this low fps?

I don't know of any addons there that conflict with each other.  I would suggest possibly disabling more addons use just what you need while raiding.  I know that hard I need all of my addons but try it and see if that helps.  Another thing to look at is addons that store info or retrieve info from a db or sends to other players in your party/raid or guild members (Gatherer is one. Recount mabe another, and of course QuestHelper) those could be causing some lag.  If your sure its your addons you just need to keep disabling some till you pin point which one/s it is.

Go grab PerformanceFu, shows you the usage of memory by addons.

Some tips: remove Omen2 and replace with Omen3 (smaller, doesn't have or need the Threat lib), EQCompare can be accomplished in game by pressing the Shift key when mousing over an item, MobHealth is useless now (the base UI shows HP/MP by default) and if you are still having issues, while raiding, turn off Bejeweled and QuestHelper (the latter is especially -- it's a memory hog).

Speaking of memory/performance hits, Recount is a resource pig as well, so unless you are desperate to see your own stats, and can't wait for someone else to link them, I'd disable that as well.

You can always turn stuff back on when the raid is over.

Gatherer, LootDB, QuestHelper and MobHealth all have BIG databases hanging behind them which eats a lot of system memory. Next to this, SCT and Recount take up a fair amount of processing time.

Furthermore you could lower 'Spell Detail' in your Video options. Older pc's will have troubles with all the spell effects happening during raids, lowering spell detail might speed up things. The only new problem you will get now is that some bosses will have floor based aoe attacks which you might not see with lower spell details.

This is all great advice. Thanks a  lot everyone I appreciate it.