PS This problem happens both in Firefox and Chrome
Based on your description it seems this issue happens with any video or audio source/material.
I wonder if this a DPC latency issue, something caused by third party software, or a combination of issues. Try identifying the cause by installing a different graphics driver version or doing a clean boot.
- How to perform a clean boot in Windows
- Perform a clean startup to determine whether background programs are interfering with your game or program
Thank you kindly, Joe. I will work through these and let you know what worked.