4 seconds would be fantastic, cause now if the phone screen is locked for more than a minute or two, it can take anywhere from 5 minutes to an hour or so before they all come crashing through in a big group. Of course if you wake the phone up, yes, then they also come pouring in all together. However if the phone is plugged into a charger, no problem, instant notifications even if the screen is locked. And this is regardless of the fact that everything possible in the phone settings is turned off to disable doze for the app, and the app has a constant message saying it’s running in the background.
I’d certainly be curious if that’s not the case on your Android phone, but the problem for most people here seemed to start around Android 8 quite some time (years) ago. I’ll also point out that wyze has promised or been promising the fix for this for just about as long. I’m on my second android Galaxy (S10 plus now running latest Android 10) phone that’s having the exact same issues as lots of other folks have been having, and been posting and testing for ages with extremely repeatable results.