iPhone thinks wired earphones are bluetooth

Hi!

I recently bought a pair of in ear monitors for gigging, but decided to try them out with my iPhone 12 Pro Max. I’ve plugged them in using a lightning headphone adapter, but my iPhone seems to think they’re a set of Bluetooth Beats earphones. The IEMs have good audio quality with other devices, but the iPhone quality sounds terrible! I assume this is related to my iPhone thinking it’s a Bluetooth connection. Any idea what I can do to prevent my iPhone from treating it like a Bluetooth connection? Pictures attached to show what I mean. Thank you!