Infant care

Hi mummies, for those sending LO to IFC, how long time for your LO to adapt to IFC? My LO is 9mo and she cries badly when I leave her every time.. (today is her 3rd days in IFC..) Sometimes I see other babies just sit on the floor and cry. I Understand the teachers cannot attend to all babies at one time but I feel sad when thinking about my LO crying alone as well.. only two teachers taking care 9 infants, is it ok?