But these challenges reveal the weakness of using Core Web Vitals. According to Anna Migas at Perf.now() 2024, the new performance metric in this scenario is patience. In this case, the date of the next delivery is the critical data for the user so it is prioritized over order history. Your user analytics should point you towards what the critical data is for each page the user accesses. Ex: Not allowing a user to log out of a web application while it’s updating data.