Ee bright box 2 upgrade

[phoenixlager]

I have an EE bright box 2 router using (I think) ee 70mbps broadband.

I have 2 kids who stream to their tvs whilst using a tablet / mobile phone and me and the Mrs watch Netflix.

We have been experiencing buffering on Netflix a bit. Would upgrading the router help?

What would be a good upgrade option?

Thanks

 

[On Holiday]