ApplyImpulse/ApplyImpulseAtPosition Inconsistency

I would like to know why the ApplyImpulse method jitters, unlike VectorForce. Could it be caused by the scheduling happening in the studio, maybe VectorForce force gets applied before the physics calculation and ApplyImpluse which happens post-calculation?

ApplyImpulse you can see that it jitters a lot when I opened toolbox

VectorForce no jittering whatsoever