Disruption lag

Anyone else notice a lag of about 1.5 seconds after the disruption fires before it actually takes affect? I've been shot by people with glowing weapons over 10 times now. This really needs to be an instantaneous effect, the build up is long enough already, there's no reason for a 2nd delay. You already have to be pretty damn close to the enemy and it doesn't last long as it is, so why not make it instant like everything else? Why the delay before it actually takes hold? It's either a bug, or server side lag, but I've got several videos on my Xbox account that prove it happens consistently.