Non-boarding private schools generally have smaller class sizes and were traditionally much more supportive of students with additional needs (like dyslexia, dyscalcula, etc.) - so they might do the same exams but removing some of the barriers to doing those exams that weren’t traditionally supported in public schools. My wife went to one of the smaller private schools and I went to a much larger public school (I think my year alone was larger than her school) and you could see the difference in how much support struggling students got.
In my time those things were unknown. A lad in my brother's primary school class probably had autism (harmless lad completely in his own world, no self awareness, not conscious of being teased) but seemed to get no help.
Dyslexia was unheard of.
I briefly went to a very bog standard bogger fee paying school in late 80's (no longer has fees now). It was a horrific place.
108 students split over 4 classes usually, sometimes 5 inc. a remedial class.
There were no toilets in the changing room area. Only one block of boys toilets in the school. The school was crap at sports. It had all these absurd unquestioned rules that relentlessly encouraged bullying. Thank fuck the kids were actually nice and able to cope.
If you had a problem, it was your problem, few teachers even cared.
Why would any teacher want to work in such a place?
Little duty of care, no such thing as personal development.
I hated the place and everything it stood for.
After moving twice in six months I ended up in a village tech school.
Massively less discipline and smaller class sizes. 4 classes for 86 kids. The sports facilities were OK. Hurling is mostly played in neutral venues anyway.
Go in, do your school work with no real hassle, with few nasty teachers and you'd be pretty OK. You could do some sport if you wanted but even PE ended up as being optional.
Much better school.