@Shawk
What device are you using? As you’ve tagged consoles but didn’t specify the device.
Also as your using NOW broadband, how is the device connected? Wi-Fi or Ethernet cable?
If it’s Wi-Fi have you split the bands?
https://help.nowtv.com/article/improve-broadband-speed
Do you have boost as well as your cinema membership?
FYI that I do not work for NOW, just a NOW customer trying to help