I'm been using OMV with Plex on my Raspberry Pi4 for a bit now and most 4k HDR movies seem to stream fine. I've recently added a few with higher bitrates that appear to me to be too high of a bitrate for my 5400rpm drive to keep up with. Plex is showing the average Bitrate at 106Mbps. I understand some scenes will use less and busier scenes will use more, I believe the HDD can't keep up because more static scenes are fine but busier scenes causes the stuttering.
Is there a way to get my files to cache to an SSD for faster read speeds? If not, would a RAID setup allow me to get around this if I can get data pulled from essentially 2 drives at once?