@pioneerbaker
Sorry for the delay, in this case you can use same playlist, but the performance of the video will depend on the media player you are using. Some lower end media players struggle with 4k content, so you might need to convert the video to a lower resolution for compatibility.
In case you need to convert the video, there is a excellent tool called Handbrake for that, you can find more info here: https://playsignage.com/support/handbrake/