Me [40 M] with my new GF [35 F] of 4 months, not as attracted as previous relationships.

I started dating a great woman a few months ago. She is everything I've always wanted out of a relationship but I'm not as attracted to her as she is to me. I really want someone to share my life with and she is someone I can see that with. I always have a lot of anxiety getting into relationships and this issue is making it really bad.

I've had a lot of relationships in the past where there was a lot more lust but I would never want to spend my life with any of those women. It sounds like bragging, but I've always dated really attractive women. But I'm older now and she is probably above-average for someone my/her age. I feel like it's time for me to grow up and be okay with being with a woman who is just reasonably attractive, like if I keep bailing on relationships bc a girl isn't perfect, I'm never going to be happy.

I know I sound like a completely shallow jerk, but I don't like feeling this way. I'm a good person who wants to be happy and content in a real relationship.

I'd actually be okay with a less-than-perfect-lust sex life and to focus on other parts of our relationship (which are great). But she has a high sex drive and is always wanting sex. It's tough for me to act like I always want it when the attraction isn't that strong. I really want this to work and I can't imagine my life without her. How do I deal with this? How do I re-frame/re-train my idea of attractiveness and be okay being with this woman? Will this pass?

tl;dr: Best woman I've ever met but attraction isn't what I'm used to. What do I do?