Threadripper 1950x 100% usage on timeline playback?

So I am trying to troubleshoot a clients PC that I built strictly to work with 4k raw DNG files.  I have replicated the problem (much worse on my machine) so we know it is not a hardware failure.  We also reloaded windows and the only programs we have is Adobe.  Below is the scenario

My client is shooting on a 4k Drone that uses DNG Files.  When we import these files into Adobe, even a 12 second video, the playback puts the CPU at 100% and starts skipping and and 4-5 second delay.  My personal system hard locked up.  Below are the specs:

His PC

AMD Threadripper 1950x

4x16GB DDR4 Memory

EVGA GTX 1080 TI SC

Samsung 960 Evo SSD

Windows 10 Pro

My System

AMD Ryzen 5 1600x

2x8GB DDR4 OC'ed to 2933MHz

AMD RX 580 8GB GDDR5

Offbrand 240GB SSD

Windows 10 Pro

What is going on?