It must be those big blue eyes.! 
In my experience, the shield pro and the new fire TV cube I’ve been the fastest and most reliable, of course and not everyone wants to spend that much money, I have also used Chromecast with Google TV, and TiVo stream 4K both did well, but weren’t as fast. When I change channels on Tivimate on the new fire TV cube there is no lag whatsoever ,much faster than a normal cable box from your cable company. I got the cube for $100 so for me, I felt it was worth it
From video notes - I go through what actually matters when you’re buying an IPTV box — the three certifications nobody explains properly, why the cheapest box on the list is usually enough, and the Google rule change coming that most videos are getting wrong.
