I have an iPhone X that was blazing fast and had zero problems until (almost exactly) the launch of the iPhone 13 and iOS 15.So is it the case that iOS 15 demands just enough more from my phone to make it lose its snappiness? And by that I mean, sometimes there will be input lag when I’m using the touchscreen, random apps taking too long to load/crashing, etc. Minor things, but the stark contrast between now and 3 months ago is shocking.The surprising part is iOS 15 was a minor update - there are no features that I would conclude demand more processing power. So is Apple just not optimizing their iOS releases for a 3 year old phone? Or is this planned obsolescence?