Where in the world are you and can you see the accretion disk of the black hole that’s affecting gravity / time-dilation and therefore the speed of light? I guess with a lower SF the chirps would be stretched less …
If it’s a battery consumption worry, then do you know what your device idle current is and where the biggest battery use is and what the impact of reducing from 5 seconds to say 3 seconds would be?
Is this because you set it too large in Sept? Rx window enlargement