I have a subscription to an IPTV service. I'm using Perfect Player with a URL list. Every so often the audio and video don't line up. Is there a setting on the Mi Box that needs to be adjusted or is the problem Perfect Player? My Mi box is connected via HDMI and no receiver or soundbar is being used.

I guess it can also be the service provider but when using the same service on PP on my Shield TV I don't get the same issue. Has anyone had the same issue? Any help is greatly appreciated.