Display Matched and Non Matched Values based on a slicer value

 I am working on a Viewership table which tells which customer watches which asset.  Based on the asset filter, I need to display the customers who watched the show & customers who didn't watched the show. below is my example table

If the asset_id selected as 1 in the slicer, the desired output will be as below

I have tried creating a cross-join table with asset_id and customer_id , but that approach taking much time with large data.  Request the experts here to suggest the best optimal solution to achieve this. 

thanks

bm