try this, feed about twenty balls at a time listen to the paint hitting the pod to get a sense of what the hopper is putting out. when you hear a gap try to mentally freezee frame and focus on the problem. My guess is that this is a commonn case of the fact that the halo is meant to feed on gun and not in air
What is happening is tha tht ehalo is building up pressure to force the balls through the antijam, and then the spring outfeeds the motor for a split second before getting caught again.
Try putting your finger at the base of the feedneck and applying presure to the paint as it goes by, simulating a bolt forceing the hopper to shove the paint, and letting the motor actually keep tension. you shoul notice the feeding become much more consistant, and that the bps acutally increases.