Performance issue during insertion of document to collection between Android and iOS

I ran this in MacBook Pro (15-inch, 2019) and This is the structure of single record in JSON. Tried the same in multiple machine the result is same.

{
“drugId”: 1713,
“ifile”: “LLY07151”,
“color”: “white”,
“shape”: “”,
“score”: “”,
“clarity”: “cloudy”,
“coating”: “”,
“subshape”: “”,
“subcolor”: “milky white”,
“flavor”: “”,
“imprint1”: “”,
“imprint2”: “”,
“formulation”: “human recombinant 70 units-30 units/mL”,
“drugForm”: “suspension”,
“genericName”: “insulin isophane-insulin regular”
}