Something that I'm finding is increasingly limiting my ability to ride quickly is having time on twisty stuff to read the trail accurately.
Case in point today - playing on some new DH runs. Tight left berm into 4m gap stepdown, 10m of trail, 6m gap hipped stepdown. You can't see the first takeoff until you're almost on top of it (too much undergrowth on the inside of the berm) and you can't see either of the landings until you're actually airborn. Due to the jumps you need to hit it pretty fast - too fast for my eyes and brain to process what's going on.
I got through the section basically by rote learning. Took me 4 or 5 attempts to teach myself what I needed to do to flow the trail. But once I'd got down it, I was very aware my brain had zero visual recollection of what went on between landing the first jump and landing the second, which is kinda scary...
I've had similar issues in the alps too. Getting gapped on blind hairpins by riders I can keep up with in other circumstances. They just whip round at full tilt whilst I'm still trying to work out where the trail goes. When I can see through the corner, I can stick with them easily - so it's not a bike handling issue.
So how do I go about training myself to "see faster"?
(NB I'm not condoning riding faster than you can see to stop on public rights of way!)