I have a 2019 55" 6-series (55R625) Roku TV. I installed the Tablo app on the TV. The app runs but switching channels is PAINFULLY slow. It takes anywhere from 8-10 seconds to switch channels. However, when I do the same thing on my iPhone, iPad or Apple TV, the time goes down to 3-4 seconds. It seems that the app on the Roku TV is just broken. I may also try just a standalone Roku Streaming Stick+ or older Ultra and see as well.
Is anyone else experiencing this issue? Are there any suggestions to fixing this or is this an existing bug? I have turned on the “fast live tv startup” feature as well.