https://youtube.com/@BADMINTONEvents
Seems like about 5 FPS though 
Edit: Court 1 is a bad feed, court 2 is ok.
Court 1 was also bad yesterday…but nobody bothered to fix it, perhaps nobody even bothered to check the footage. And we wonder why badminton is underappreciated in England when the governing body doesn’t even care about the live stream of their National Championships…