SunFounder 7 Inch Wifi & Hdmi conflict

Hello everybody, my problem is with the 7 inch 1024×600 USB IPS LCD screen, when I start the raspberry pi 4 with the HDMI cable connected I loose Wi-Fi connection, however, if I start it without connecting the HDMI cable it will boot normally. I tried connecting a different screen and it starts normally with the other one, even I tried to change the HDMI cable from the second screen (once the raspberry pi has booted) to the sunfounder screen everything works fine, but if I restart the raspberry pi with the sunfounder screen connected the Wi-Fi connection get disconnected again.

Please provide the problem video so that we can know the issue better.
Additionally, please try testing the issue by switching to a different WiFi network.
We have not encountered a similar case before.
Therefore, any additional information you can provide would be greatly appreciated, as it will enable us to investigate the matter further and work towards a resolution.