When I was there last time I rode slammer multiple times. The first 2 times the ride was being batched by a staff member while the ride was in motion so loading and offloading was done very quickly. However in the afternoon the batcher was gone and was left to the standard set up I saw last year. I do believe in the morning the ride had 4 people working on it, the 2 operators one on the exit side and one batcher however later in the day it seemed there was only 3 people. The 2 operators and person on exit side. So when the ride had stopped the person on the exit side would come over and batch people. This makes me think the slow loading could just be down to not enough staff. However saying that slow loading isn't a problem as the queue never really exceeds 1 or 2 cycles anyway.