is having a slow let down could be the problem?

Freak

my baby does not latch and even if she does, she will stay there for free seconds without sucking and would fall asleep. after watching so many videos on YouTube of mammas breastfeeding, i find that i don't get a continuous stream of milk when hand expressed, instead drops. now am wondering could this slow flow could be the reason why my little one does not suck. any suggestions?