I’d blame the device if other apps weren’t noticeably faster with similar UI/features. But it’s mostly that they’ve hijacked system level defaults, like what the intent of a remote control back button push is and obviously make it difficult to escape the app. Performance is salt in the wound.

Yeah, I think the device makes a huge difference. Amazon Prime on AppleTV is not horrible. It’s not the best UI out there, but it’s loads better than Hulu, and I like it much better than Netflix because it doesn’t try to constantly scream at me while I’m trying to find something to watch.