You have a Fabric tenant containing a semantic model named Model1. You find that the following query executes slowly against Model1.

EVALUATE
SUMMARIZECOLUMNS (
    'Product'[Product Name],
    FILTER (
        VALUES ( 'Product'[Product Name] ),
        NOT ISBLANK (
            CALCULATE (
                COUNTROWS ( 'Order Item' )
            )
        )
    )
)

EVALUATE
SUMMARIZECOLUMNS (
    'Product'[Product Name],
    FILTER (
        VALUES ( 'Product'[Product Name] ),
        NOT ISBLANK (
            CALCULATE (
                COUNTROWS ( 'Order Item' )
            )
        )
    )
)

You need to reduce the query execution time.

Solution: Replace line 4 with the following code: ISEMPTY ( RELATEDTABLE ( 'Order Item' ) )

Does this solution meet the goal?