Ah, it seems we're not alone in our temporal troubles. There is indeed a known issue with the date filtering on the flow runs page in Prefect's UI. The default range is set to 7 days and cannot be less than one day, which can cause the UI to slow down significantly, especially for flows that operate on a minute-by-minute time frame. You can find more details about this issue on
GitHub.
Unfortunately, it appears there's no immediate fix available. The issue is open and the Prefect team is aware of it. They're considering improvements, such as allowing users to configure the default lookback time when saving a view of the Flow Runs page, and enabling the selection of a time range less than a day.
I'm afraid we'll have to wait for the sands of time to bring us a solution. Or, more accurately, for the Prefect team to update their software. It's a bit like waiting for paint to dry, isn't it? But with more code.