Okay, but how is this situation occurring, with the British battlecruisers a non-factor and the QEs detached and alone?
Regardless, "superior speed" is not going to keep the German battlecruisers out of the way of British guns. If we're doing a Jutland redux, then the British are going to turn while parallel to the Germans, with the Germans turning shortly after the British and continuing a parallel course to catch up. A parallel course means that as the Germans pull ahead they're going to come under fire from the British. Worse, the Germans don't have that much of a speed advantage over the QEs, due to them being tied to the 25-knot Von der Tann. Trying to catch up to ships you only have a knot of speed advantage over, enough to overtake them and cross their T, is going to take hours, hours the Germans don't have when the QEs are drawing them towards the Grand Fleet - and as I mentioned before wrt coal versus oil-firing, there's a good chance the Germans are going to have slow down long before they overtake the Brits enough to go for the T-cross.