The queue is only for the first step of checking documents. After that it’s first come to get in line and wait to go to window. I was number 30 and arrived right at 9 am. They group numbers by 30, I think, and it’s not long before they release the next batch. I was about the 15th person back in the line and it took about 45 mins. As I left I saw the line had grown to 60+ people. I wouldnt want to sit there waiting if I didn’t have to.

Also people start lining up 15-20 before they open

App is online