Particles in container penetrating through wall

[JuhaHo]

I used the limiter operator. The speed limit was set according to maximum freefall speed before hitting to an obstacle. I thought, it's the maximum speed particles should travel. It improved the simulation. However, there's still some penetrations.

So which one I should start iterating with:

1. Time steps 1/8
   
2. PhysX substeps 12
   
3. CCD Maz steps 4
   

Other?