I submitted my application in person on April 28th at Canada Consulate-Detroit and I'm still waiting. As far as I know, there is no way to expedite the process. In my case they even didn't say anything about my application status. Did you mail your application to the visa office?
I sent my application to Buffalo by post canada, but no news after 7 weeks! I don't know what is wrong there! nad no way to speed up the process.