Interface very slow on retina (5k)

Hi,

The Audition (CC 11.0.2) interface is very slow on a high-res display. I switched from a 4-year old iMac to the iMac pro and my framerate while moving the display field or zooming has dropped to 3-5 fps.

--> The problem is definitely the rendering of the interface on high-res displays, because when I drag the window to my non-retina second monitor, the framerate is normal again. If I open the app in low resolution (MacOS finder setting) it looks ugly, but the framerate is good again.

Any word on a speed increase, or GPU acceleration for the interface?

Thanks!