Hello, I've read many posts ont the subject of iPhones updated to iOS 9.3. But mostly they are 6 and 6s. Anyone out there have updated their iPhone 5s to 9.3. I've had mine for only 10 days, it came with iOS 9.2.1 and I love it. But to be honest, it's not the fastest phone in town. So since I cannot compare with any System for speed, I'd like to know if updating to 9.3 would make the little devil slower or a little little bit faster. Or a little little bit slower. Hope I'm not double-posting. Thanks in advance.