I wish I had a good answer for you, but I don't.
Many of the ops are new at the job and still working at learning everything, so for some it's going to be good that they're running the rides consistently. Not a good excuse by any means, but a realistic one. That affects how fast they load, check restraints, etc, and that they will speed up on as they get more comfortable in their jobs.
At that point then they will start pushing more for capacity and getting more people in. Right now in many places the focus is more on run it safely and according to procedures, but they will very soon start pushing the numbers on the ride as well. At least they should.
I noticed that it seemed like they were short on running trains on a couple of the coasters as well. I didn't look close as I wasn't planning on riding anything today in the couple of hours I was there. But it was certainly busy, so hope they get working on getting those rider numbers and ride vehicles up soon. Tomorrow is going to be nuts.