Hello, I did have this problém on my old Huawei P30 Pro and now I do have the same problem on new Honor Magic 7 Pro. All eWeLink notifications are delayed about 5 to 10 minutes. The window or doors are opened and it takes more than 5 minutes to get notification, same for notifications triggered in scenes. I do have all power optimizations for ewelink app turned off.
For example D-Link camera notifications are comming on same phone within seconds.
We’ve received similar feedback Pixel users where notifications get delayed after the phone is locked. We’re wondering if your case could be related to the same cause.