So I've noticed when I get in large 25+ player raids / bg's I suffer from sporadic lag spikes or choppy delays. It is basically like my game freezes for .5 secs and continues like normal and will do this every 4 - 5 secs. I am unsure whether this is an internet / computer or game issue. I have tried to include more specific information below. I normally have between 40 -60 ms world and home.
Game : WoW, run on 'Good' Video setting defaults.
CPU : Intel i7 with 6g of Ram
Operating System : Windows 7 64 bit
Connection : http://www.pingtest.net/result/72490466.png
I am wondering if there is any way I can improve this, I honestly don't feel it's a connection problem as my ms never kicks up which makes me wonder is it a computer or actual game problem. I would be happy to include any other info required in order to better figure out my issues.
Edit 1 : I have also tried disabling all addons and the problem remains.
Edit 2 : I also run Norton antivirus as well as utilities and all virus / malware scans have come up neg. Registry errors fixed etc.