Hi,
Have you checked that the tablet has the latest firmware installed?
Research online indicates that there was a problem regarding audio sync that was resolved with a system update.
Here’s a [https://pcsupport.lenovo.com/au/en/products/tablets/yoga-series/yoga-tab-3-8/solutions/HT117027|link] that shows how to perform an OTA system update of the tablet (if there is one available that is). Click on the ''Over-the-air (OTA) system update'' link to view the procedure.