I was had (GeForce 250), and the game became very slow when I want to sell or buy or improve my items or searching items during the game, and I can’t buy a new video card. I will continue playing the game. But when I upgraded my video card into SAPPHIRE HD 6870 1GB GDDR5 PCIE to improve the performance of the game, but nothing has changed, and the game became worse than before.
[img]http://i42.tinypic.com/zurw3l.png[/img]
According to your screen shot, you have at the very least 16 processes running on the task bar not including the rest of the system processes & no doubt all your back ground processes. That Catalyst process icon showing is usually good for 3 to 4 running processes. All those running process icons in the notification area is a huge problem for overall system performance. As an example, I have 3 processes running on the task bar, mouse driver, anti-virus, & GPU fan controller. Total processes running right now is 55 with Chrome being 5 of those, so when I shut Chrome off, its 50 processes total.
You seriously need to learn to optimize your OS.