ASCP Constrained Plan EBS -Planned Order Suggested due date still not read to Resource Capacity

Hi,

We are facing an issue in ASCP Constrained Plan, the Suggested Due date still not Constrained to Resource Capacity Constraint.
So the current condition now is, the lead time of the production will be the same whatever the qty of the demand.
Our expectation is the lead time of the manufacturing will consider the resource capacity, so the more quantity of the demand will be take longer the production lead time.

This is the sample of qty demand 600 pcs and 1000 pcs, the suggested start date and the suggested due date still the same.

Current configuration now, We are using ECC (Enforce Capacity Constraint) in ASCP Plan Options.