Mind's eye isn't FORESIGHT, it's basically "imaginary training" in dragon ball, or Garou's prediction (where he foresaw dozens of possibilities of King doing an attack, when King wasn't even the one that attacked him in the end.) To quote it directly, it's literally- "localized as: False Insight is a natural talent to foresee/sense and avoid danger on the basis of an innate 6th sense, intuition, or prescience. The accuracy of this instinct can be augmented by experience."
While TRUE Mind's eye : "is a heightened capacity for observation, refined through training, discipline and experience. A danger-avoidance ability that utilizes the intelligence collected up to the current time as the basis in order to predict the opponent’s activity and change the current situation. This is not a result of talent, but an overwhelming amount of combat experience. "
BOTH rely on prediction, one just more combat and instinct oriented while the Fake mind's eye is basically studying/Predicting outcomes prior to combat.
In Musashi's case, quoting her:
"The essence of my Niten Ichiryu lies in ADAPTING TO THOUSANDS OF POSSIBILITIES." Hers is the fake mind's eye and true mind's eye in one, since she can read thousands of outcomes during the battle itself, than analytically viewing it beforehand, while ALSO being able to image train even before fighting her opponent.
The difference between her and Zoro is that Zoro doesn't foresee possibility, he foresees OUTCOME the second you intend it. Kenbunshoku for the likes of Zoro and Luffy has been repeatedly shown to be always accurate, while Katakuri's precognition has several instances of it being countered/Changed due to his being overall precognition, while Zoro's, albeit far inferior in the length of foresight, is still definitive since it foresees what you "intend" to do, not predicts what thousands of things you COULD do.
To make it simpler one would be:
Mind's eye: Foresees thousands of things you COULD do and chooses a single outcome that can negate all
Kenbunshoku: Foresees what you "intent", meaning it doesn't rely on "chance", just definitive foresight with the only way of overcoming it being far too fast for the user to even react to what they foresaw (>Luffy vs Kaido's thunder Bagua on the roof). They don't "predict" it, they just foresee your intent the second you have it.
Kenbunshoku is just far superior. It has far less inconsistencies. You could counter mind's eye by foreseeing what the user's move is going to be and countering it. (Similiarly to how Luffy's Kenbunshoku negated Katakuri's foresight).
That aside- her mind's eye clashing with his Kenbunshoku would likely result in both being practically pointless, since every outcome she could predict, he'd foresee her countering it before she even does it. To attack, she'll need to "intend" her attack first. Unless she has Ultra instinct-
It boils down to being a head on battle. So what does she have offensively that can put Zoro down before he breaks her swords?