Amazon's Fire tablets are slow, but you can give them a little pep with a few simple tweaks

We tested this on a 128GB SanDisk A2 microSD card (A2 cards are supposed to be the best for apps) with a 7th-generation Fire ...
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Android: How to clear your app cache on your phone or tablet

If your phone feels sluggish or takes longer to open apps, upgrading to one of the best Android phones for battery life is an option. A simpler (and cost-effective) solution might also do the trick: ...