Another thing I do to speed up my android smartphones is free up memory space from the smartphone’s perspective instead of from a connected computer. On an Android phone open settings menu. Then Storage and you see how much total space you have and each category. On mine I had a total of 16GB. The category we are after is the Cache. Tap “Cached Data” and a menu presents itself: “Clear cached data?” Tap OK and it is cleared. I performed this procedure on my Samsung Galaxy S III and it went from 4.66GB used to 277MB. That’s a 4GB savings which on a 16GB memory card can make a good impact on performance.