Ken,
I have to apologize. Your right, doesn't have any effect. In my hurry I didn't take care about my setup. With the short times I used the ASCOM CCD Simulator. With the QSI690 attached, I'm unfortunately back to 21s regardless which setting ('HiSpeed', HighSpeed', 'Normal' etc.) I use. So it's still open. I compared it to MaximDL (which I tested). This will have the Image does remote controlled within 5s in total. Hope you can do something about it.
Many thanks,
Michel