My kids had Chinese enrichment since they were in Kindergarten … go into Primary school, elder kid Chinese always 80something 90something but English & Math not fantastic … add Science later also same thing, borderline passes.
We got them English & Math tuition, and elder kid went from 60something to 80something 90ish, Science no tuition still getting borderline passes.
End of the day I am convinced it’s not that like tutor is teaching them what they don’t know, but the tutor’s presence is there just to make them study. It’s not that we cannot do it ourselves … e.g. when Daddy go through their work, Math no need to look at answer sheet 1 … but the kids don’t want Daddy to teach because Daddy fierce

and are resistant to learning if Daddy is the 1 doing the teaching.