Disable 'tooltip' widget preview when mouse hovering items in Case Editor and Outliner

I have some complex .RP files that are generating repeaters off larger sets of data. Whenever I highlight a widget in the Case Editor or Outliner, Axure generates a tooltip preview of the widget.

This is handy for most projects, but can sometimes take 10+ seconds to generate and it takes me exponentially longer to make simple changes and navigate because of this. Please let me know if there is a way to disable this.