I have a network composed by 3 deco xe75 pro and one deco x50. My 2.4 Ghz network is unusable (packet drops, high latency, continuous disconnection of IoT devices).

I've done a scan of wifi and found that deco often chooses a channel used by other networks, and channel width is always 40 Mhz. The only way I have to reduce interference is to reduce channel width to 20 Mhz, but I can't do dat with the app. Can you help me?