I am an American citizen but don't live in the USA. I will likely have to fly to the USA for my bio metrics, send the visa then wait for its return. How long does it take to process the visa without paying the "premium" VFS service fees? I am trying to do this as inexpensively as possible. Is there a better way to do this? So far, it will cost me the return flight, accommodation while I sit and wait and however many vacation days to sit around and wait for my passport. Does this seem accurate?