I like my lawyer job but i dont care about it

Listen, I like my lawyer private mid-zised firm job. It is relatively interesting. I like the people on most days. It is fairly flexible. I have an office with a window. I dont get paid the biggest bucks but enough to be comfortable and not have to worry about money day to day (which I recognize is a wealth on its own). But I do not care about it! I do not care about becoming partner. I dont have that fire in my belly or that internal hustle. I care to do a good enough job to not be fired but nothing more. I just dont really care about it, plain and simple.

I am just starting my second year as an attorney. I am not sure if 1) this is related to my specific job and its time for a job change; 2) this is me realizing that maybe I am just not someone who will ever really have a fire in my belly for anything professional-life related, and that my current job is pretty damn good deal; 3) something else?

Any thoughts appreciated!