Milk production question

So i have been pumping since baby was 2 days old because she has a lip tie and until corrected i can’t breast feed her. I am 6 days PP today and I’m only producing about 1oz per breast per session

***is this normal? Every 2 to 3 hrs excluding nights

**Also my left breast produces less than the right

I get 1 oz in 15 minutes on my right breast and i have to pump over 20 minutes on the left to get close to 1 oz and most times i don’t even get the full oz.

I have been eating lactation cookies but just started a few days ago not sure if they are helping yet