How to import the data from another app without allowing the users to drill down

Use Case:
There is App1 and App 2 within the same workspace. Need to bring the metric’s Xyz values with Employee dimension from App 1 to App2 on a real-time basis, i.e. in App 2, the user shouldn’t be able to drill-down on the underlying logic written in  Xyz metric.

Created the scheduler import (metric to metric import) in App 2 to fetch the value from App1 and fetched it in a PQR metric in App2 , and then created another Final PQR metric: which is just referencing ‘PQR’ metric and published Final PQR on the board, but need to bring the data real-time , how to do in Pigment- Can anyone please guide me with this?