Brakes or lack of !
SU
Have the brakes always been like this or is it a new symptom ?
FWIW the pistons in the calipers may need removing and cleaning.
The Scott master cylinder was better matched to the Goodrich bladder type wheel cylinders. Because the disc brakes displace much less fluid than the bladders when they operate, the hydraulic ratio isn't the same, which means more pressure is required on the brake lever, for less braking effect.
tth