New to Samsung guys? Never, ever, ever install any updates on a Samsung if the device has been out greater than 12 months. They always purposefully nuke your performance and battery life to make you buy a new one. Notice how they made this update a permanent one, one you can't roll back. That's on purpose. Its happened to me with my last 4 Samsung devices. Everything is amazing for the first year, then that first update in the new year...boom, device becomes sluggish and battery life halves.
