Indeed, but DJI's primary platform began on iOS (Inspire with an iPad was the model platform) and the Android versions were originally second rate, with the iOS versions given new features first, before the evolution to their own Android devices...
With what you described: your main problem is with penetration (the signal being able to pass through attenuating obstacles). In this case, no matter how much you increase signal strength: you'll only get a small gain over current performance...
Glad you tried the acid test and thanks for sharing your first hand observations. Anyone who has operated radios will tell you solar activity affects any transmitted RF signal whatever the wavelength. This 'event' also features a CME which is...
As I write this (South East UK, 1 pm) KP index currently up in the 8's, the highest I have ever seen it in this country since I started flying ! So I popped outside with my Mini4P to get the lay of the land without actually taking off.
And I...