i have an iPhone 4 that is still running iOS 5.0.1 which i jailbroke years ago and it always worked well. then, suddenly, some time ago, maybe around the launch of iOS 7, the performance of the phone just tanked. apps started taking forever to load and, once they did load, they were choppy and unusable. well i have been putting up with this for quite some time now, and i want to know if anyone out there knows how exactly Apple pushes out this exploit and how i can undo it? the phone is jailbroken and i can SSH into it for full control of the device, so there must be a way to undo this exploit....