Oculus GO - Quest - please reply community

Hi
I still wonder why Sketchfab still perform very bad on Oculus Go and Quest and perform much better on even old Iphones.

When I go to VR from my Iphone 6S it performs very well, crisp and sharp, but when I try from the GO it seems that Sketchfab handle the device wrong, the scene is very blurry and low res.

Any idea why this still doesn´t work?

Anyone else have the same experience?

Looking foreward to a solution
Normark