Hey!
This is something I am currently investigating. This seems to be an issue with certain dashboard widgets on iOS devices. Providing a list of widgets might be able to help us tracking down the culprit. We are currently running test to find and resolve this issue. Unfortunately, this takes a while before we get the results. If you want to actively help us solve this issue, try to remove certain widgets for a day, Lights, insights and the Energy widget seem to have some effect.