Lagging so bad

[ecwolfify]

Yes, I am definitely in the same boat atm. So far what I've got:

1- ISB cpu settings (60/30 foreground and back) --- Checked
2- msconfig Startup Items un-tick and rebooted --- Checked
3- AVG complete pc virus scan --- Checked
4- Restarted modem multiple times --- Checked
5- WoW graphics & sound settings set to Lowest --- Checked
6- Computer power settings set to "High Performance" --- Checked
7- Air compressed my entire machine for dust and lint etc --- Checked

My fps like a few days ago was pretty consistent around 50-60, no problems at all. Now it sits at 15/9?? Not sure what happened recently but afaik, it supposedly isn't any one of the above.