iOS performance is going downhill every year.
I remember the moment I got my iPhone 5 perfectly well. It was extremely fast and smooth. Two years later, this is not the case anymore and it is choppy for no reason. iOS 8 almost looks identical to iOS 7, yet its visual performance is much worse than iOS 7. I also have an iPad 3, I probably don't have to tell you how awful the performance is. It's like a slideshow (iOS 7.1.2 ran pretty well actually).
A few years back, I remember "us" making fun of Android for lag. Well, let me tell you, I recently used a 180 Moto G (you can get about 4 of them in exchange for 1 iPhone

), and it was buttery smooth and very fast. Ofcourse it has its limitations (camera is subpar), but I'm observing a trend here:
- iOS performance worsens each year, even on the high-end models
- Android performance increases every year, and runs perfectly fine on low-end hardware
It won't be much longer or Android users will start to make fun of us for our slow and laggy phones instead of the other way around. Maybe we have already reached this point.
This bothers me a lot. iOS is the main reason I have an iPhone, but its advantages are diminishing rapidly if Apple doesn't get their act together and start focusing on performance instead of useless features such as HealthKit, widgets or shortcuts in the multitasking window.
End rant.
PS.
Idea: How about a feature freeze for iOS 9. Don't add any new features or change anything, and only focus on increasing performance and fixing bugs.