react-native with xcode simulator has very slow alerts

Question

In general, the xcode simulator works very well with react-native. For example, using live reload, changes made to the code are reflected in less than a second. However if I do Cmd+d in the simulator to bring up Debug menu, the menu comes up very quickly, but I cannot click any option for something like 20 seconds. The same happens with a javascript alert, the alert comes up quickly but it takes 10 to 20 seconds to be able to dismiss it.

How can I fix this?

Answer 1

Maybe you are pressing cmd+T by mistake? This command triggers 'slow animations', so all animations in the simulator happens very slowly