Why my ipad mini 1 (A1455 Late 2012) is slower than my ipad 3(A1416 early 2012)?
iPad 1st Generation has an A5 processor while the iPad 3 has A5X (Much faster). This is very similar to iPad Pro 2017 and the iPad 2018. Even though the 2018 iPad is the latest, it doesn't mean it is faster than previous models. It's a matter of the processor itself. In fact, I have an iPod 5G and it contains the same processor as iPad 1st gen. It is kind of slow.