I've a big performance Problem with my computer. Especially on private Lan Party's, I often host games, and we play fungames like 4v4 Speedmetal Quad o.s. After some time, my computer begins to lag (while my Laptop runs fine), and some minutes later, my Ping is growing! (Sometimes, I had a 90-second delay to myself. Every other computer runs fine, or only lags a bit (cause of the ~2000 Airplanes

Computer specifications:
Intel i5-750 @ 3,4ghz
8gb DDR3-1333 RAM
Geforce GTX 285 AMP! (Overclocked)
Windows 7 Ultimate x64
(No other choice than using Windows, want to play new games)
I've attached important things to my post.
This doesn't happened on my older computer (where I used nearly the same LUA's, just an older version of IceUI)
Someone have an idea? It's so annoying that my favorite game (beside Trackmania) runs not smoothly enough to play well in endgame

Greetings from Germany,
Sereiya
PS: Spelling mistakes are intended.

Spring Settings (1): http://sereiya.de.vu/Spring%20Settings%20Quality.jpg
Spring Settings (2): http://sereiya.de.vu/Spring%20Settings%20Details.jpg
Nvidia Settings: http://sereiya.de.vu/Spring%20Nvidia%20Settings.jpg
Spring LUAs: http://sereiya.de.vu/Spring%20LUAs.jpg