I wasn’t aware this existed, very cool!
One thing I would say is Bluetooth is inherently laggy, though low-latency codecs help a lot.
If you have issues with latency again, I’d recommend buying a pair of RF headphones instead. Radio is super low latency. Downside is that the guitar would need to be wired to an RF transmitter but it’s an option.
SUPEEER MEAT BOOOOY!