The lowest number I can find for "low-latency Apt-X" is 32 ms end-to-end over Bluetooth. Opus frames default to 20 ms wide but can be configured as small as 2.5

The lowest number I can find for "low-latency Apt-X" is 32 ms end-to-end over Bluetooth. Opus frames default to 20 ms wide but can be configured as small as 2.5 ms, so I don't think it's going to slow things down very much.