Video stutters in PIP

I love the new PIP feature, but it stutters too much.
I didn't experience a similar issue with other streaming apps that offer PIP.

What device?

iPad

Yes, but which one? Is it an older model? Maybe struggling with the OTA video feed. Are you seeing this on OTA? Or a different source?

Oh, it’s iPad from 2018.
It happens when I watched recorded shows.