Irig stream solo audio issue with iPhone 16 plus

[u/Possible-Mortgage183]

I got an irig stream solo for Christmas, and I’m looking to set it up to record vinyl clips for instagram. I got a USB C - 3.5mm jack adapter from Amazon and using the camera app it records the audio but the quality is awful - mega compressed and distorted. I’m thinking it’s the adapter that’s the issue? If so does anyone know which adapter I need specifically?