Axure 9 3665 Build is super sluggish on MacOS Catalina

Axure RP 9
16

I am having the sluggish performance / choppiness / lag also. Panning is bearable. Zoom is not.

I am on Axure 9.0.0.3658 (which is the latest version available at my company).

Specs:
macOS 10.15.5 (Catalina)
MacBook Pro 2019
display: 16-inch (3072x1920)

overview
overview1170×500 160 KB

displays
displays1396×1052 144 KB

It does seem slightly better on the lower-resolution external monitor. (But only when there’s basically nothing on the canvas.)

Is this still an open backlog item to be fixed?..

thanks

EDIT: It appears this has been an issue since an early beta version and remains so: