Hi and welcome to the forum @Anonymous User,
Sorry to hear you're having problems. In order to help you, can you please provide the following information: -
Sufficed to say, the more detailed information you are able to provide, the easier it will be for us and/or the NOW TV developers to work out a solution for you!
...also BBC Iplayer, 4OD, ITV player all lag or don't play.
In answer to your questions:
We have an LG tv.
Software version, I'm not sure? But I found LG web OS TV UJ701V (If this is it?)
App version, 2.27.0 (going by your directions)
I've tried rebooting.
Our provider is SKY.
I hope you can help, Jim