Well, sadly after trying different planes and flights on and around YBBN the only way I can get smoothness is by reducing my Tex Res to MEDIUM OR LOW. And I can see the difference this makes. So considering all my other 3rd party airports seem to work fine at ULTRA, I’m ditching Orbx YBBN and Brisbane Landmarks.
It is very strange how some have no issues and others really do with this airport. Perhaps they will hear the complaints of many and really dig into it to fix it. We will see I guess.
thanks for all the input, I do appreciate it.