sauske couldnt even react to kabuto when he sliced itachi. If sauske was to be able to match naruto that would mean this;
If km naruto is near minato's speed then kabuto would have had to match minato's speed or beyond for sauske to not react to kabuto but react to km naruto. (If sauske was able to follow naruto's movements).
How ever nice a sharingan is if you cant react its not very effective.
Then theres the fact sauske wont be able to keep susanoo for ever naruto would be able to smash it open (unless someone here thinks tsunade is stronger than naruto).