Anyone used Delayed Audio Feedback app with Bluetooth earphones with success?

Anyone used Delayed Audio Feedback app with Bluetooth earphones with success? Maybe just me, but even when I set the delay to 0ms, it's like half a second, so unusable. I have Android, Xiaomi, Redmi Note 8 Pro Tried apps: 1.) DAF 2.) DAF professional With wired, 0ms is truly 0 ms, but with wireless, it's fked. I have Bluetooth 5.0 version on my phone, so unsure...