By default, playback often tries to pull the "Main Stream" (highest quality). Go to . Select Sub-Stream for playback instead of Main Stream.

Entry-level NVRs often support playback of only 1 or 2 channels at 4K resolution, or 4 to 8 channels at 1080p.

Using H.265+ encoding reduces the bitrate. While this primarily saves hard drive space, it can also streamline the data processing required during playback.

To help you get the best performance out of your system, could you tell me: What is your ?

If you are recording and viewing live feeds at the same time, the CPU prioritizes recording, leaving less "room" for playback.