The forthcoming software update will include a way to manually disable the deliberate lagging, but at the risk of the iPhone shutting down without warning.
“We will tell somebody saying we’re slightly reducing, or we’re reducing your performance by some amount in order to not have an unexpected restart, and if you don’t want it, you can turn it off,” he said. “Now, we don’t recommend it because we think that people’s iPhones are very important to them and you never can tell when something is so urgent [that an unexpected restart could have a negative effect].”
Given that many — if not most — iPhone users would gladly take advantage of any feature that promises to make their device faster, it’s a bit ridiculous to offer that ability, then strongly urge people not to use it. Then again, only time will tell whether users who take advantage of the forthcoming option will end up experiencing a whole world of random shutdown pain.