Help: CPU runs at max. 30% while running CSGO

So I have a notebook with Intel Core 2 Duo T7500 2.20 GHz and csgo is lagging horribly. It only goes about 1-4fps ingame.
Notebook is Dell Latitude D630 with 2GB ram, win7 profesional 32bit

But today I found out that my CPU never goes higher than 30% load on both cores. What can I do with it? Its averaging at 24%.
I have even set up high performance profile at power management in control center but doesnt help. Also, resolution doesnt matter either, 640x480 or 1440x900 it runs the same.

a ty sa velmi nudis?

a vobec, preco by mal byt procesor vytazeny viac?

co cakas od GMA X3100?

Ok už som prišiel na to . Hra chce minimálne 256mb GPU memory, tá 965 intel chipset family má iba 8mb