How to refresh a report into a dashboard?

Hi,

I have a report done which shows the production's information of latest 8 hours. My client wants to see all the information calculated and autorefreshed in a period of <5min.

We'd discard RESTAPI and PUBNUB services because this method shows all information individually into tiles (if i'm not wrong). I have ~65 visualizations into report, which show them in diferents tiles (which force to order it quadratically and had a minimum size) won't be comfortable to see.

How can I refresh the information of a report put into a dashboard without refreshing all page? Or it has any other method to do this?

Nowadays the origin is from SQL Server as DirectQuery.

Thanks all