Quote - d) If I render from Poser, asking it to render in a separate process; then Task Manager shows the temporary instance of a FFRender process. But, that process no longer runs in Posers 'Normal' setting. On my machinem that new process is always set to "Below Normal".

This was a much requested feature. It allows you to browse and do other things without the slow down which a 100% CPU usage would bring. If you leave the machine idle, the render engine will take all CPU cycles