This conversation has been merged. Please reference the main conversation: Lightroom CC: Scroll speed on iMac Pro incredible slow
But: I own a Top Line Macbook 2016 15" System with Radeon Graphics and 2,9 GHz Quad Core CPU, but scrolling is not smooth. When putting Lightroom CC on a secondary 5K sceen it is not even close to smooth, when scrolling with the magic mouse top and down a few times, the result is that i can sit back and watch the next 15 seconds for the programm to execute the scrolling operations, and this in an album containing just 200 photos. In Apple Photos scrolling in the same constellation is like butter. This is really a huge dissapointment and blocks me from using this software, since... what I want to do with it is as well: browsing my photos...
But the direction the product is going is really promising.