@Wined2310 @AlexLegend165
I’m flying VR at about 150 degrees FOV horizontally. Normal monitors have FOV around 100 degrees, UW around 115 degrees.
In other words, I have to load and render around 40-50% more data in order to display the area without errors. Asobo has reduced the data load for non-visible areas through culling. Everything else is pure arithmetic if you ask me. 
If you think this amount of data fits in only 5Gb Ram, ok. I only see that only the Orthos without Autogen Objects are already bigger for me in XP for this area.
I think, i know what i do