>>2002635isn't that supposed to be a triple crankset?
Squeeze your front brake hard, does the cable stop flex? I bet it does. You're losing braking there.
You should file the keys off your headset washers (useless form of neanderthal adjustment that is prone to strip steerer tubes when the washer and nut sieze together and then the keyed washer gets threaded off the fork)
You can then delete some of your headset and fit a chunkier brake cable stop in there.
also clamp bottle cages on your fork and put storage containers in them
and clamp 2-3 inside the frame triangle for water
That is a gorgeous bike btw.
I would also look for a different seatpost, flutes inside your frame is not good
