I find it interesting that many people assume there must be an either/or: either a truly Catholic identity or academic excellence. I attended Catholic schools at two ends of my childhood: Kindergarten/1st grades, and 11th-12th. What characterized the two different schools (& 2 different locations) was the common reality of the unmistakably Catholic character.
Not just daily Mass (yes, there was), but regular sacraments, ALL Holy Days off (no one remembers the jokes and envy from our Protestant brethren attending publics, who got off only secular holidays, while we got both?

), remembrance of feast days, Catholic historicity (we really learned the Saints, ecclesiastical history) and general religious literacy (knowing all the classic prayers, knowing catechism/basic theology), holy water fonts inside the doors of every classroom.
Starting every class period with prayer. (Wait, what a concept.)
Order. Silence. Respect. Actually faithful nuns, dedicated to teaching, within teaching orders with that charism (while other orders concentrated on nursing, social work, more). At least one priest connected to every Catholic school.
I never experienced it as superficially symbolic or artificially ritualistic. It was authentic & genuine, it provided a sense of identity, of community, of comfort.
During those time periods my academic achievement was leaps and bounds over the best publics in each of those two areas (with great public resources). The education was solid, tradiitonal, classic, and thorough. And I got a ton of music and plentiful P.E.
I did the best with my girls, who got a K-12 Catholic education, but it lacked the spiritual richness mine had, by comparison. Different time periods. In the '70’s both priests and nuns suffered major personal identity crises
en masse, and Catholic laity abandoned its traditional roots simultaneously. I was fortunate to have been blessed before that time, but never say that academics and the good aspects of modernism need exist at the expense of spirituality. With the right leadership and committed staff, they can co-exist. I just haven’t see it during my adulthood, in Catholic schools.
…Maybe for the next generation – once people get sick of New Age fads with their empty promises of “self-realization” (self-worship) and become genuine seekers of the truly Divine. And when nuns rediscover that realization of personhood is achieved within real community and a focused mission.
The excuses ring very hollow to me. It’s difficult to believe that 40 yrs ago, millions of nuns had the true gift of teaching and the training to match that, whereas supposedly now practically no one in religious orders has a single talent to teach, let alone a desire to. It’s just not believable.
I want to give a shout out of thanksgiving to those sacrificial nuns who taught me, and the much smaller handful of still-dedicated nuns who make even a minor presence/witness in Catholic schools. Really I’m very grateful and you are forever in my prayers.