content: I've seen this comment like 10 times in this thread, decided to reply to you since you seem reasonable most of the time. I don't think this whole slowdown thing is as bad as people make it out to be. I was using an OLD IOS on my 4s (a 6 year old phone). I updated it to jailbreak it (IOS 7 to IOS9, and for a day my phone was REALLY slow, but it optimized a bit and was working at about 90% of its old speed with better battery life. ON A 6 YEAR OLD BATTERY THAT HAD BEEN USED EVERY DAY. That's fkn insane. Like sure the batteries should be replaceable, or at the very least the phone should be waterproofed if the battery isn't removable, but is this bricking phones left and right? no it's not. Just don't update to the new IOS if you think apple is a greasy bitch, but don't complain that your phone is optimized by the update when it's been known for fkn YEARS that this happens.