So far I've identified that the KSamplers (Advanced) are the work horses. I've reduced them down from 20 steps to only 5, and put the 5 as the end step for both as well.
I've reduced down the output to 640 x 360 and reduced the frame rate to 25 fps.
So far its running faster, but we'll see how fast. I'll report back on a rendering time approximation.