CC 2019 13.02 Mac
Thunderbolt 3 QNAP 12 drive Raid5 NAS at 1000MBS read and write using BMD disk speed test.
2018 iMac Pro 64GB 3 GHz Intel Xeon W
Radeon Pro Vega 64 16368 MB
Everything is top of the line and best you can get currently on Mac.
Timeline is fully rendered.
Hit play on timeline, wait 5 seconds for it to play. Drops frames. Audio glitches at times.
Cleared cache, deleted prefs, etc.
Switching to software rendering plays it faster but takes forever to render.
Open CL renders quickly but is a playback slug.
3840X2160 ProRes HQ.