I don't know if this helps, but it took me about seven weeks for a renewal to be processed. Note that renewal is approximately the same process as the initial application, including the in-person interview.
The first time it was about four weeks, but that was over six years ago, so pre-covid, and being impatient, I scheduled my interview in Otay Mesa, because it was the earliest I could get. Flew down. Went to my interview and then for the first time went to TJ for an afternoon.
I do not recommend interviewing in Otay Mesa. I had a 9:30 am appointment and it was almost 11:00 before I was interviewed. And the interview was 30+ minutes and intensive. They not only wanted to know where I worked, but wanted to see my corporate ID (which I had with me). They have my criminal record (or lack of) on the computer in front of them, but still grilled me on criminal history, in addition to some personal questions. I think the agent was enjoying watching my bewilderment. At the end of the interview, the agent announced that I would be approved and took my picture without warning, so I looked bewildered in the photograph. Then his demeanor changed and he gave me some (unwanted) tourist tips on what to see and where to eat in San Diego. I gave a polite thank you and left.
When I interviewed for renewal at SFO, it was less than 10 minutes and that included trading a few comments about my minimal Spanish language skills. He was quite amused that I was making an effort to learn a foreign language. OTOH, I am not sure that he spoke Spanish at all, as his responses were minimal. Anyway, the point is that I know a few others who got their interviews at SFO and they were brief. Interviewing at an international airport is recommended.