Formula and gases

Hi, I am combo feeding from day 1 to my 2 weeks old daughter. So far ai am pumping and offering breast from time to time however, I start leaning more towards the formula and baby bottle. She is taking boths things for now. However, I’ve noticed her being more gasy the last couple of days specially after the 3am feeding session, she keeps crunching and although asleep, doing noises and fartinf. Is this normal when feeding more heavily on formula?

I try to slow the bottle feeding as much as possible since she gets really anxious. I also try to keep her up and burp for a few minutes (not releasen too much gas during the burping though). Any ideas?

Thanks!