Why is the monitoring screen of the Xiaomi Smart Camera C300 lagging, not clear or the picture and sound are out of sync?

For your reference, there are some solutions as follows:
1. The video monitoring screen of the Xiaomi Smart Camera C300 has two modes: high-definition and automatic. The HD mode requires higher network traffic and bandwidth in comparison to auto mode. It is recommended to select automatic mode;
2. If you have selected automatic mode and still experience lag, it is due to poor Wi-Fi network conditions and heavy congestion.
You need to check the Wi-Fi routing, which can be done as follows:
1. The surrounding signal interference is serious, adjust the working channel and frequency band bandwidth of the Wi-Fi router;
2. There are too many Wi-Fi routing access devices, resulting in excessive router load and insufficient network bandwidth allocation;
3. The camera is far away from the Wi-Fi router, the signal is weak, and the network data transmission is unstable.