I am using RadioMaster AX12 to view the video feed on the QGroundControl app on the controller. The speed of the video stream is very low (every 10 seconds, one frame). I checked many things using AI, and it seems that all settings are fine on the drone and wifi side. Would you mind providing details on how I can increase the video stream?

Also, there was no charger in the box to charge the batteries. Should I buy one, or can I charge them using the drone itself?

Why does arming with a power supply cause severe damage? I am thinking of using a power supply for flying using tethering and a better charger.

For 4G or 5G connectivity, could I purchase an accessory for the drone and use that for the camera feed?