Apple Media Tool: Slow QuickTime When Controller Enabled

I am using the Apple Media Tool, and I get slow, jerky playback of my QuickTime movie when the QuickTime controller bar is enabled. Movies play fine if the controller bar is not present.
The slower playback is normal when running a project from within the Apple Media Tool program. Controller performance is corrected when the project is made into a runtime.

To check true QuickTime performance:
Published Date: Feb 19, 2012