Just go to the top of the BenQ forum here on CDFreaks. Look for this sbject header:
Read First: MediaCodeSpeedEdit support for Benq/Philips DVD-Writers
Look in the first post by ala42. At the bottom of his post you can see the link to the download of his MediaCodeSpeedEdit.
After you download it, open it and load the firmware you are planning to use. There is a check box for "Increase Read Speed". Just check that box and then save the firmware. Then flash your drive with the firmware that you saved.