In one of my vaults, it is taking about 15 seconds to display a folder's data card.  It doesn't matter which folder is selected, or which folder data card is used.  I've tried deleting all of the controls from the data card, but it still takes an awful long time to display the folder's data card.  There is an old SPR for this (747026), but it is still open.  So, I was wondering if anyone had a solution or workaround for it.  I'm currently on 2016 SP1.0.

747026