I was having issues with Netflix around the same time, constant quality drops.
I saw other people with similar issues last night/this morning, like this guy with fibre. It looks like this one may not be Vodafone's fault, though.
The connection was mostly good tonight. We had some congestion in the peak hours and I saw a dip to ~50 Mbps, but overall things were smooth. Excited to see a consistent, even higher level of performance once the upgrades are complete.