Baby is not gaining enough weight

Hi! My baby is currently 10.5mo and only weighs 8.17kg as of today, she should be at least 8.8kg and above by now. She eats multiple times throughout the day and is very active, so I know it's a factor for her not gaining enough weight. But I'm worried her weight might hinder her from being on par with her developmental milestones. Anyone going through the same thing and have any advice? Thanks ❤️#advicepls #firstbaby #firsttimemom #pleasehelp #FTM #1sttimemom #babyweight #activebaby