Some people I know say that replacing the battery helped their smart phone improve its decreased speed resulting of two years of use.
My initial guess is that this would not have any influence because the speed is mostly about the phone's processor and built-in memory.
But then I got to wonder if I'm mistaken. Maybe if the battery is old, it does not deliver sufficient power and forces the processor, and thus the whole system, to work slower. Or maybe even, that the smart phones switch to "economy mode" (does that even exist in a smart phone?) when it detects that the power delivery is not sufficient.
Any thoughts? Thanks