My Station work very slow and i have juste purchase it

I have purchase Lenovo D30 whit Xeon 12 core 16 gb ram and Quadro 4000 3gb and when i make speed test i have not have good result.  The bench is a little bit more than my old station Lenovo whit 4 core an FX180????   IT's possible solid works dont use all cpu? 

SolidworksGeneral