Top video: Explode when moving from left to the right down to the poppers, you had a smooth skip there. Should have had the reload done before reaching the other corner. Get the reloads up higher, doing them low.
Coming down that walk, maybe a smooth rolling the heel walk, you could have shot the paper, and started on the poppers, instead of moving all the way to the end, then start the engaugment.
Bottom video: Rack that slide hard and let it go, seen you had to rerack it. Starting with gun unloaded, start with first mag on belt, if they have to come from the belt. Reaching around to the back added some time. you engauged from left to right, last target was close, where you able to start, heading backwards? meaning while backing up, take you last 2 shots. Reloads low. Left side, shots from the far to near, sounded pretty close as far as split times. Starting from far to near, should increase in splits.
Both videos, let the mags fall. don't grap them to help with dropping. If the mag release is hit as you are bring the gun back to reoload, the gun will be straight up and down, mags can't drop out faster then that. But if gun is tilted as you hit the release they will drag.
Good Job, hope I help some.