The link below goes to an interesting article from a teacher’s perspective of Chinese language speakers trying to speak English as a language, and why it is difficult.
It gives an insight into the speech differences between the languages and helps us understand a little about why English-as-first language-speakers find Chinese languages tricky too.
Speech New Zealand – guideline for teaching Chinese speakers (https://www.speechnz.co.nz/wp-content/uploads/2014/03/chinese-final.pdf)