So, I just started using a Wacom, Cintiq 13. I have my screen setup as an extended desktop (MAC) on 90 degrees, and have started experiencing some serious lag in Lightroom, even though I recalibrated the pen for the degree change. Is it LR6, the Wacom at 90, or something else causing the issue? I have turned the tablet back to the standard landscape and the lag has lessened (a lot) but is still there, and when I turn it back to 90 the issue comes back like a dirty demon; I would say about 30min or so while working / painting masks does it really become a total pain. Of course I could not use portrait, but I just wanted some clarity on the issue. I've always wondered why such a display option exists, and now that I have found a use for it & really like it, it would be super awesome if things worked out better. Thoughts?