I am doing some simple rendering of 5K R3Ds, converting them to HD mp4 movies using AE6. My hardware is a relatively new 12 core Mac with 32gb of RAM. We are rendering across a network with gigabit ethernet and only getting 1 frame rendered every 6 seconds. The activity monitor shows no strain on network bandwidth, cpu usage (only using 3-5 cores out of 12) or anything else significant.
What could be the be the bottleneck? I am looking for general answers of known issues, not necessarily a detailed custom troubleshoot.
Would a PC be significantly faster for this application?
Thanks for your help,