Greetings!
This is Tin, I'll do my best to help. Looks like the sound coming out to your bluetooth headset is lagging. Sorry to hear that.
If you don't mind me asking, when did the issue start? Is it working properly before?
Have you tried to connect your headset to other device and is it also getting the same issue?
Please try to disconnect and reconnect the headset and check if the issue persists.
Does your computer have built in speaker? If yes, is it giving the same issue?
Please run the Audio troubleshooter
Click on the Start menu and type Troubleshoot and then press enter
Find the Audio option and then run it
Check if the problem persists.
Please let me know how it goes.
Thanks,
Tin