I have been dating a woman for a year (on my territory), everything is good, she offers to live together to see what's up.

She has an 11 year old son, rather unfortunate (sh*tty, bad at school, no interests). I feel like she's bringing him up completely wrong, I offered to pay for a psychologist for him but she refused.

Went on holiday with him and it was a nightmare, now the prospect of living with him strains me at all. How do I solve all this? The woman suits me, but she has no luck with her son.