Simulation Speed Problem

Hi, I am happy that I am done with my simulation but few problems.

1st. If I increase the simulation speed from x 4.4, the process begins to skip/cracking/jumping from 5 seconds. It stops running smoothly. I have tested other layouts and they run smoothly. It could be that the modelling is heavy, but I expect it to run smooth despite that. My laptop is also high graphics. I wonder if I tampered with any settings.

2nd. I created a need pattern process at the forklift placement. I needed about 2 layers on Z axis but forklift only places 1 layer.

3rd. The pusher conveyor. Is there a way the pushed product can be collected in the trash bin?
Bottle Filling Production Line.vcmx (17.1 MB)