How to debounce AR.js flickering of model on Marker?

I noticed that very often the 3D model added to a Marker on AR.js is flickering very fast (visible, invisible…) Is there a way how I could delay or more likely debounce this behaviour? If the Marker is not visible for some milliseconds it shouldn’t immediately make the model insivible, maybe it returns back again… so this would look much better.

Where in the library could I change this behaviour? Or maybe there is even a parameter for this?