Xcode Simulator animations extremely slow when played in editor

Question

Recently I have experienced, that Xcode\'s simulator has become extremely slow. Also if I create a new app and run it i, the transition between the launch screen and the fir

Answer 1

XCODE 9 BUG. This is officially confirmed to be an issue with Xcode 9.0 and its iOS 11 simulator — it affects any OpenGL-using application.

See: https://github.com/mapbox/mapbox-gl-native/issues/9959

Also: https://twitter.com/xenadu02/status/911463433521860609

:( Hope this helps.