Audio lag when using external speakers using AUX out

From last two days I am experiencing audio lag when using external speakers using AUX out? Any help is greatly appreciated.

So you did not have this before?

What is the content source you are using, is it an internal app or HDMI, USB-C Video, USB drive or SD card?

I tried factory reset, but didn’t help. Also noticed that factory reset didn’t actually do a reset to the original/previous fimware

And also the airmote is poorly responding now.

Internal app like YouTube, Netflix etc. Never had this issue before since I received my unit in April.