Maybe a cable/housing change is in order? I have both a 1 x 10 XTR setup with 42 t extender cog and a 1 x 11 XTR setup and the shifting feel is similar albeit slightly less effort on the 1 x 11. And yes , the 1 x 11 has the adjustable clutch which i've only adjusted once after a break-in period.
10spd shimano clutch derailleur does have adjustment as well, you just have to remove the cover and adjust it.
jbv, keep in mind, you do have to clean and grease up the clutch once in a while.