Smush Envira Gallery Conflict

Some Envira Galleries are taking very long to load. e.g.

After checking with WP Engine, they are saying that "the external call to is taking 40,300 ms on it's own on /galleries/fire. That may be preventing items from loading until it finishes and causing the timeout."

This is what WP Engine sent me:

Can you please investigate why Smush is sending request to Smushing server every time the gallery is being loaded? Gallery load time drops instantly when I disable Smush.