I just noticed that Express 2017 hardly uses my CPU during rendering.
I have an i7-6800k, 6-core, 12-thread CPU. Whether I use Express 4 or Express 2017, it uses all 12 threads. But when I use Express 4 to export video, I generally see about 70% usage across all threads. When I use 2017, the highest I've seen it go is 17% and it goes much slower than on version 4. I tried raising the process priority, but no change. Any thoughts?