I’m sorry I can’t answer @james blocks me and deletes my messages.
It’s not for iOS 14.5.1 Infuse 6Pro works perfectly with iOS 14.5.1 and my iPhone works equally well.
It also happens in Appletv 4.
Infuse 6Pro starts in 3 seconds.
Infuse 7Pro starts in 40 seconds to 1 minute randomly.
Infuse 7Pro is not fluid either the visiting films left the code here diagnostic.
Technical details: GRGJM
This message will delete @james I hope you read it first.