Hi Aravell,
There has been a recent switch from Nvidia’s PhysX physics engine to Epics Chaos physics engine. I can’t speak to exactly why those variables might be missing, but I found this post which mentions some ways that Chaos fundamentals are different than PhysX.
So maybe the pinball will naturally behave better with Chaos Physics. (Or worse 
) Also “Stabilization threshold” sounds like it could do something similar. (More solver iterations = higher stability?)
Cheers!