[Tom Manion]

I also am experience poor preview performance after installing CC-2015. My project is 1920×1080 HD with only graphical elements. While I see the green indicator bar render (like the CS6 RAM preview of old) I get black, vertical lines in the timeline window that correspond with a “Not Realtime” warning and broken audio. If the spot cycles (repeat playback) it actually gets worse. I have upgraded my NVIDIA and Blackmagic drivers. I have gone through all the preference and memory settings. I have tried different dpi settings for the pictures. I have forced the vector-art to RGB, I have degraded the frame rate and resolution on the preview playback settings and I still am getting poor performance on these previews. When I open projects in both CC-2015 and CS6, the CS6 RAM preview works fine. I am sorry this post doesn’t help you with your problem, but I wanted to see if others are also experiencing difficulties with the new “RAM Preview is dead, long live Preview”.