Football, rugby, cricket, tennis, golf, motor racing, boxing, darts and snooker all sit in the sport category, with the build-up before, the live coverage and the studio talk after. When the source broadcasts at 50 frames per second, that is what reaches your screen, so a long pass or a fast serve stays crisp instead of smearing.
A live stream over the internet always runs a little behind the broadcast signal, usually somewhere between a few seconds and about 30 seconds. If the house next door cheers before you see the goal, that gap is why. It is part of IPTV UK viewing, as it is of any stream sent over broadband.
Match nights also fall in the busiest hours on UK broadband, roughly 19:00 to 23:00 and heaviest at weekends, when several servers share the load. At home, a cable from the router and hardware video decoding count for more than a headline speed.
On an Apple TV, open Settings › Video and Audio › Match Content and turn on Match Frame Rate and Match Dynamic Range. That removes the judder a 50 fps match can show on a screen set to 60, and the forced HDR look on menus.