Yeah...Notebookcheck rates the 9500M GS as the best GPU in Class 2...So it's nearly a Class 1 card. I run every other game I play optimally, it must just be that the game was very poorly developed as you said.
Notebookcheck: Comparison of Grafic Cards
Middle class GPU that ist about 10% faster than a similar clocked GeForce 8600M GT graphics adapter. Therefore, the card does not deliver enough performance for very high details with DirectX 10 effects of demanding games like Crysis.
Core Icon 475 MHz, 32 - unified, DX10 | Memory Icon 700 MHz, 128 Bit
I can run Crysis on Medium no problem.