I did not find any App Nap things to worry about.
I found a actually very stable solution and that was to use this small app called “Mac Auto Mouse Click” that you can use to schedule a mouse event or series of clicks.
Anyways, as for the bug, I am not exactly sure… I want to make a bunch of video mixing widgets and send out the video via Syphon. But if there is a shallow overhead as far as piping out video quickly I may need to rethink.
On the whole, are you more confident in the stability of Syphon in Processing 2.0 or 3.0