Why am I experiencing more Bluetooth latency with my iPhone 15 than my iPhone 11

This is strange and I also know that Bluetooth isn’t recommended when making music but I never had an issue with latency on my iPhone 11 which is now broken, my voice always matched the beat but with my 15 the latency is a problem. The solve this I could really just use my interface and stuff but I liked being able to quickly record something with my headphones on the fly when I had music in my head, it really helped with making songs