Would building more British battlecruisers before the First World War bring the Kongo class about sooner?
Short answerNo, Japan's own money and timing govern the order, although it might buy more ships.
NotesMore British battlecruisers would not by themselves bring the Kongo class into service earlier. Japan would still order when it had the money and time to do so. It might order more ships, but that is a different change from accelerating the programme.