Fingerlimes are known for high numbers of male flowers, lower numbers of female flowers.
Could be seedling age related, the balance might get better as the plant grows, or more likely as total flower numbers increase with growth,
the plant will produce more female flowers that can set fruit.
You could have a high male flower seedling plant. Grafted Fingerlime vars have been selected for good fruit set and fruit quality. Some vars with nice fruit are low producers.