Openai whisper api is too slow (23 minute), unable to use

I have tested serveral whisper api today and found the response time is extremly slow (23 minute) compared to just 3 minutes in 3 months early.
My test case is put a 20 minute cantonese audio file to test the processing speed of whisper api.

attached with my screenshot.

Out of curiosity, what app are you using?

The app that they are using is called Postman, it is used to build and execute API requests for developers to interact directly with API’s.