[victoriasun]

Actually I don't own an iPhone X :P Our core user base tends to use 6 and above (approx 2 generations behind) and we dogfood regularly with a huge group of beta testers (thousands) with a huge range of hardware. We try our best to make sure the average use case is considered.

[Dylan16807]

Considering the average is good but it still pushes the performance treadmill forward.

If we had some magical way to make the dev treadmill run slower than the user treadmill, we'd see better architectures in many cases. In that alternate world it would be easy to precompile the javascript and load 20 times faster.