In the second hotfix announcement here they said this would be addressed in WU6 later in August.
LOD Popping and Stutter when Camera Panning – PC Simmers with graphics set to Ultra will experience this when panning the camera around very quickly. We are working on a new option that will allow you to customize how much off-screen scenery will be cached. We are aiming for this to be released on August 24th (World Update 6).