There are many reasons behind this question why is my fire tablet so slow because of mishandling the gadget, full of storage, virus attack, update issue and etc. but if the same problem you find in the new device then calls the amazon technical expert it will help you out to resolve this fire tablet slow issue. In the case of an old kindle fire tablet first, your device needs antivirus, deleting unwanted files, and updating the device. After all of this, you can easily use your fire tablet.