Kindle Fire 8.9's Skin Is Sluggish

The keyboard feels slow, always a half-beat behind your fingers; buttons will sometimes animate before they do anything, so you’re left with a glowing button and nothing else; and there’s just small bits of lag all over the system as you open and close apps, scroll through menus, and even turn pages in books. It’s far from the smooth, zippy experience on some of the Kindle Fire HD’s best competitors.