This conversation has been merged. Please reference the main conversation: Lightroom: Laggy sliders on Windows with Wacom tablets
I use a Wacom tablet pen and touch small (CTH-480). I use two samsung screens 27".
When using the tablet in LR CC, there is a big lag when moving sliders and histogram. Very annoying. However, it works very well under LR 5.7.1
Other issue, When using LR CC, if i click right in the develop tab on the 2nd screen, it does not displays the edit menu but the background color menu. But if I zoom and right click, then the edit menu appears.
If I shift the develop menu in the 1st screen, then clicking right would display the edit menu.
This issue does not happens in LR 5.7.1