Same here - normal loading times (from an M2 SSD)
Are you in beta?.
I think I solved the problem by uninstalling a previous home-made version of the Lukla area containing images, elevations and some of the airports included in the Aerosoft package (had totally forgot that, since it was from more than a year ago).
After those deletions, I was finally able to open up Lukla in VR. What a wonderful scenery, really!.
Thanks to all for your input.