To simplify: The Lightroom Primary is sluggish no matter what port the monitor is connected to and no matter which monitor it is displayed on, and regardless whether the monitor is designated as Monitor #1 or Monitor #2. All other apps are peppy on both monitors, no matter which port they are...
Windows 7 Pro 64 bit
(Please go to Help menu > System Info to double check the exact version number)
Classic version: 7.0 [ 1140024
Question or Description of Problem:
When in Develop, with the 2nd monitor set to Loupe, the image displays instantly when...