For a no hacks alternative, I built TV Explorer. It puts the channel's published HLS stream into your browser with no interim steps. Uses the public GitHub list of more than 10,000 free channels. https://tvexplorer.live
It feels very light-weight, it's approximately instantly-responsive. Back button works. I don't understand the stats (or my contribution to them), but whatever.
(the closed-captioning pop-up causes some overlay issues for me, though)
moar edit: Upon further review with my very not-special desktop box, I'm reasonably confident that this is the quickest, most-responsive "TV-watching" experience I've had since analog NTSC left the scene ~eons ago. It's fast like switching from channel 11 to channel 13 used to be with the very quickest and most well-behaved of tuners.
What aren't you doing that everyone else is doing?