Hi there!
I understand how frustrating it can be to experience audio delay or lag with your Bluetooth earphones. While it's difficult to pinpoint the exact cause of the issue without more information about your specific setup, there are a few more troubleshooting steps you can try. 
First, make sure that your Bluetooth earphones are fully charged. Low battery levels can sometimes cause audio issues. Additionally, try connecting your earphones to a different device to see if the problem persists. If the delay is still present on another device, it could indicate a problem with the earphones themselves.
Next, check if there are any firmware updates available for your Bluetooth earphones. Manufacturers often release updates to improve...