I had a jailbroken 4th gen iPod Touch for 3 years, and I loved it. But after iOS 6 came and I jailbroke it again, it was super slow and glitchy. I'm not sure if this was because of the jailbreak, or my iPod was just getting old and out of date. I'm afraid if I jailbreak my iPhone, it will ruin it by slowing it down and making it glitchy like my old iPod Touch. Will it slow down, or can the A6 processor perform flawlessly with the jailbreak? I most likely will not be using it for themes.
См. статью: Is jailbreaking my iPhone safe?