It doesn't really matter because in ky area the network signal is around -109dbm and still the internet speed is very decent i got around 2 MBPS ( im talking megabytes per second not megabits per second)The problem is how many people in your area use...
One thing you can do if your phone is heating while charging is turn off fast charging option.Of course it will charge the phone slow but due to heating of battery there is chance of reduced battery lifeI have turned off fast charnging option and it ...