Dear Will
Generally, video quality problems are caused by packet loss on the network. Check the network status first.
Here is a case you can refer to:
https://forum.huawei.com/enterprise/en/how-to-solve-the-problem-of-erratic-display-network-packet-loss/thread/576444-887
This post describes how to solve the problem of erratic display.
【Problem Description】:
There was an erratic display when the image was live feed.

【Problem Analysis】:
1. We captured the network package on the PC.
2. We captured the network package on the VCN server.
3. We analyzed two network packages and found there were some packet loss.
【Root Cause】:
There was a slight network packet loss in the network.
【Solution Description】:
1. We restarted all the cameras.

2. We restarted all the cameras.
3. After the protocol was changed to TCP, the image was observed to be ok.