Boy speaking slow?

he's a bit alow when he was 2, only 1-2 word. After 1-2 months at Childcare he able to speak few word n form sentence and after 3months he able to understand n converse Mandarin with chinese teacher, we don't speak Mandarin at home, we speak dialet

I been talking alot to him but what I know is maybe still abit time . as he understand what I mean but he trying very harD answer me

He ll be ok. All children are different but they’re all beautiful.