Have to extracts Employee, Dependant Information and their plans

Summary

I have to extract all active employees and their dependants, medical and dental plans enrollement status. here i need to extract employees and dependants who are not enrolled as well.

Content

I created extract using below User Entities 

1) PER_EXT_SEC_ASSIGNMENT_UE

2) PER_EXT_CONTACT_RELATIONSHIPS_UE

And their enrollement status in particluar plans am retrving using fast formuals. extract is working fine, I am getting required information. But this Extract is running more than 3 hours. If i dont include the columns which are related to Plans(derived by extrcat Rules fast formulas) its executing in minutes.

How can i improve the performance of extract, Please suggest me