Poor performance when compiling Desktop AIR

When I set my AIR project type to:

Target Platform: Desktop 

It runs with unacceptable poor quality in ADL (low framrate, skipping mouse events). It runs equally poor when I export it as an AIR app and run it (tried all types, self contained, .air, .app etc)

When I compile the same project as:

Target Platform: Mobile

It runs great. How can I fix this?

I use AIR SDK 24, but I also tried other versions with the same result. 

I run osx Sierra on a late 2016 mac book pro

IntelliJ version 2016.3