Can you have average sex and be with your person?

My ex and I had incredible sex and I was so deeply in love with him. But love wasn’t enough to make things work. However my partner now, I am madly in love with him, we just had a daughter and we work so well, it’s so healthy and our values align. But the sex isn’t as enjoyable as it could be. Since having my daughter I’ve lost my libido, I’m breastfeeding and I have zero drive! Help please