Lip tie

So my baby is 7 weeks old and she cluster feeds almost always. It never felt like she was out of the growth spurt. Recently I found out she has lip tie, can it really be effecting breastfeeding? She’ll feed for about 10-15 mins on both breasts, and actually immediately fall asleep most of the time after the feed. But she always gets awake within an hour. I literally cannot do anything. It’s only sometimes at night where she’ll sleep for 2 hours straight but never more than that. I really don’t know if it’s because of the lip tie or she’s just being her age