Struggling with wifi service when connected with mobile device

[Kimmy31]

When connected to home wifi on a mobile phone its extremely slow loading anything, for example E-mail content, internet banking, i generally give up and turn wifi off using my phone network instead, my husband & son also have the same issue on there phones when connected to the broadband?

[jamesn123]

@Kimmy31 

Usually two causes to this

1. Sky Shield, try disabling it

2. iCloud relay, try disabling it