Why is the Isolated borrow limit of the sub accounts 1/10 of the master account?

API Spot/Margin API
1

I need to trade with the full borrow capacity of the master in the sub accounts. Each sub account will trade with different assets.
Is there any way to do this?

2

I think this question is more suitable for Customer Support as it’s not directly related with API but more focused on sub-accounts functionality.