I breastfeed at home and pump at work 4 days a week. I also pump with my morning session everyday.

I see EP'ers say they can pump just 4 times a day and I wonder what I'm doing wrong? Is there a way to consolidate this pumping schedule into fewer sessions and still get enough milk for daycare.
I currently pump and Bf first thing in the am (between 6-7).
Then I pump on all 3 of my breaks at work (9:30, 12, 2:30) and im lucky to get 12 ounces a day.
She currently takes 10 ounces at 2 months but I expect it to increase.
I just do not seem to be reacting as well to the pump this time. I use large flanges and I think they're needed but maybe not?