Used 4 different HD videos on the timeline.
Applied 6 key adjustments using keyframes in each video segment.
Multi-trimmined each video.
And the result: a 2 minute avchd project produced in 4:30, with very good results. PD9 used all 8 cores of the processor at 99% with 3 Gb of memory in use. A notable improvement over PD8 in CPU and memory utilization. Win 10, i7