Obviously doesn't understand that videos have this thing called "bitrate" which is scaled in megabytes per second, which essentially scale how compressed a video is(more mbps=less compression=better quality)
Also, I do render to main window, but what your suggesting still does not fit under the classification of "exclusive fullscreen". exclusive fullscreen is essentialy lockign you into the main window. But with dolphin you can still move your mouse between windows/monitors.
AND shadowplay does not currently use sub regions, and even if they did you didnt read my post clearly enough -_-
Shadowplay captures exclusive fullscreen programs. Dolphin is not exclusive fullscreen meaning the desktop capture mode is required. I dont have it because Geforce Experince 2.1 is bugged for me.