Nick / UMG team has been doing a big focus on Slate performance over the last couple of releases. I personally am not seeing anything as intense as this… I’ll check anyway though just in case. What do those stats look like when your NOT actually playing your game with those tabs open / minimized? Is it possible that some of the in-game UMG / widgets are to blame for the performance hit?
Also John do you have a DXDiag handy?