I have several applications that are noticably slower when streaming from a CIFS fileshare. If I copy the Thinapp files locally it runs much faster. The performance of the CIFS share is pretty good, being able to copy down large thinapp files at a rate of around 280MB/sec. The application I am looking at currently is around 270MB in size.

What could be causing this, or how can I troubleshoot it?