pump less frequently to get more milk?

Or is it better to pump every hour, even if i’m pumping less? I am trying to build my supply back up and have begun to pump more frequently, but now i’m only producing 1-2oz each side. If i wait longer, I get 2-3.5 each side. I am also breast feeding more frequently again, so not sure if i’m catching my supply in the in between. i don’t know what to do. I am only 2 months in. supplementing w formula so baby gains weight. but pumping and storing and pumping and bottle feeding expressed milk too. Kind of offering whichever is easier based on babies fussiness and hunger.