How to turn off vsync in Stranglehold?

vsync always lowers fps so I'd like to turn it off, anybody knows how to do it?

thanks for advice
I know what vsync is. In theory it doesn't have impact on your min and average fps but in practice I often see that it is quite different. For example Bioshock: when I turn on vsync it runs a lot slower. I didn't check fps but the difference is clearly visible like in most games. Sometimes it can lower your fps to 50% even if game run always below refresh rate. "page tearing" for me isn't such a problem because in most situations I don't notice it. I choose higher fps over page tearing. My pc is 8800gts, q6600.

It would be ineresting to see some benchmarks with Stranglehold comparing 2 and 4 core processors because i saw in taskmanager that this game uses 60-70% of my q6600. It's only one game that I saw was using above 50% of my cpu.