I was just giving the bare minimum of Sage mode. If you want feats, actually, then Sage mode can go against the Sharingan. To put that into perspective the Sharingan at its
- 1st stage: can react and counter with “flawless” attacks
- 2nd stage: allows it to react to danmakus of attacks such as iron balls and kunai
- 3: In addition to the previous two it now allows you to perceive images of all the actions your opponent is about to do
These predictive capabilities are powerful enough to work on hundreds of people at the same time while providing perfect counters to all their attacks. Characters like Naruto can counter and outpredict the Sharingan with all its analytical capabilities without any form of prediction or sensing capabilities of his own. Moreover, he can fight against byakugan users who have their own form of kinetic analytical prediction that allows them to hit needle-sized points on a moving opponent.
For Naruto himself, sage mode is an unparalleled upgrade to his analytical prediction abilities so much so that he says it's better than Kurama’s negative emotion sensing analytical prediction, and his base abilities. Madara is already much more skilled than base Naruto and was washing him (and his Kurama/Sage AP) with only Sage mode and no eyes.