Why is the app slow on Pixel 7?

So a collegue comes over to me one day to ask what changes we did since the last release, reason being: "The app is very slow on Pixel 7 running on <cloud-based emulator service> ". As I, too, am addicted to being useful , I get curious and sympathetic to their call for help. I suggest we should try a debug build instead to get a profile trace. But instead, we get... a crash? Cannot locate symbol…