How to do interval in RICHO theta s?

I want to do interval for every 1 second / every 0.5 second, but the official app only let me interval every 8 seconds.

What can solve this problem?

There is no way to take pictures every 1 second with the THETA S. You can use the live streaming of the THETA S to capture HD frames at a rate of 30 fps and then delete the unused frames. The output of the THETA S is motionjpeg