'Include in report refresh' not working

Hi all,

I'm trying to improve the efficiency of some of my models.

I've turned off 'include in report refresh' but I'm not seeing any performance improvements.

I've tested this by loading a single query into a dataset (from a dataflow), turning off 'include in report refresh' and publishing it. The report took around 2-4 mins to refresh, which is the same time as the report takes when the option is turned on.

How can this be?

Thanks

Mike