The average user does not have the patience or technical background to optimize the viewer for his/her own computer. Instead, the viewer's Quality slider lets a user select preset values for Low, Medium, High, and Ultra --- an easy one-click starting point or default selection that works reasonably well for many people. The problem is that those preset values are now apparently out of date, given the advent of PBR and other recent changes. I suggest that we should have a review of the UI settings that should yield optimum performance at Low, Medium, High, and Ultra. Especially since LL's settings seem to be the basis for TPVs' own sliders, this should help improve the default experience for many non-technical users.