My Samsung Galaxy Tab S2 T813N is really slow. The interface lags a lot and it is just not enjoyable to use.
I did a factory reset, because I suspected that maybe there was some software running that was making it lag, but even after a factory reset, the performance of the device is just not acceptable.
Why could it be? What steps could I take to improve the performance of my device? Maybe a way to identify the culprit of this issue?