I get a serious stutter in LEIB when panning horizontally, this is really disturbing when using VR. The lag is at least half a second long. I removed the airport without leaving the sim and
even with no buildings left but the groundtexture, it was exactly the same stutter. After restarting and having the default airport, it was absolutely smooth.
I tried this in EDDK and ENVA with Aerosoft airports, no problem with stuttering or this lag. After installing LEIB again, same issue. Maybe you could look onto this, as this is very anoying in VR.