I'm super curious why so msg seen to have issues with the Peacock app? I've had it long before the Olympics and never had an issue. Watching the Olympics when I know millions were probably accessing it too and not one issue. I always find if your having a lag issue 9 out of 10 times it's internet (I know I know not always) and restarting router/ modem should help. I also find going into Roku and manually updating it to make sure all apps are updated and then doing a restart helps a ton. I've a habit of leaving my TV on 24/7 which is awful i know but a quick restart of Roku Ultra and I'm back to perfect viewing. I'm not directly connected either, my Ultra runs off wifi and I can honestly say I've never had issues! I hope you can figure out the lag, maybe try a restart and clear things!