Hi rowmanns
Mmm... honestly I thought the same, but it's a annoying...
I think you should add a checkbox to enable/disable this feature... now, IR isn't "IR" at all...
Open my test scene an press the two buttons < and > in the timeline.
Every frame, the scattered objects disappear/appear...
With v5.0, CScatter was much better in my opinion :/
EDIT:
Look the video: using v6.0, the IR is not pleasant at all... Every frame, we have a refresh...
Also, this is a bug: if I press the PLAY button and then STOP, sometime the scattered objects are not rendered.
You can see the problem at 1min 11 sec.