The integration connects to the Easee servers through a signalr streaming interface. Therefore, the data is pushed out to the integration as soon as new data is available.

I.e. it is not possible to change how often data updates since it is under the control of the servers. Polling for data to get more frequent updates is not an option because there simply is no data to poll for other then the one the cloud pushes out. Also, polling the API too often usually leads to being locked out for a time period.