AttributesTreeViewModel needs 4+ minutes to update

Question

Scenario:

In ArcGIS Pro 2.1.3, I select in-service water meter point features (89K).

Diagnostic Monitor says "ArcGIS.Desktop.Editing.Attributes.AttributesTreeViewModel+<OnSelectionChanged>d_102.methodMoveNext  runs as a Task on FG for 4+ minutes" to update, greying-out the UI.

Is there any thing I can do to mitigate (C#) this update process since the user is likely NOT editing, but searching for attribute matches among in-service water meters?

In the ArcGIS Desktop 10.x environment, there is clear distinction between selecting and editing processes, since you have to turn-on editing.  In Pro, it's different.  Seems the Editing TreeViewModel must update in real-time on the foreground thread to prepare for selection of the Edit tab.

Any ideas?

Thanks...

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MikeRatcliffe · Answer

Yes!  this process now takes 15 seconds.  Thanks to the Development Team.

Anonymous User · Answer

Thanks for the report, unfortunately there’s not much you can do except wait for 2.2 (soon).

The attributes treeview has recently been optimized for this case and will be released in Pro 2.2. Its up to 10x faster.