A new feature called performance alerts is now in beta. These new performance alerts will send you an email when for example your app start time exceeds a given threshold so you can investigate and fix the latency issue as soon as it appears. Performance alerts can be configured from the console and we can expect more types of them for other metrics soon.
Developer:Hold on for now, but consider in future
QA engineer:Hold on for now, but consider in future
PM/DM:Business as usual