Lagging on certain iOS devices

Certain İOS devices lags while playing the game. Of course, I would understand this problem if it was lagging on low-end devices, but it is lagging on some high-end devices that it shouldn’t be laggy on. I have noticed this problem when I got my new iPad a year ago. The first game I played was Minecraft and I was suprised how laggy it was (iPad Air 3). It was even laggy on the lowest chunks. I have heard some people saying that the problem is on Apple’s end. But if it was on Apple’s end, the device would lag on other games which requires more power than Minecraft. The Feedback Site says that İOS devices higher than İOS 10 is compatible with Minecraft, but it is not the case.