Box Whisker Runs Slowly

I wish to use the Box and Whisker display on a filtered/sliced set of data.

The problem is, when the page loads, there are >45K records in >1500 groups. So, it's not a surprise that the Box and Whisker slows down the page load - that's a lot of calculations. And I wouldn't want to display that - the volume prevents any meaningful insight.

Is there a way to suppress the drawing of the Box and Whisker until the Slicers have been set - or until there are fewer than a specific number of groups selected?