FCCS Consolidation taking longer time due to script calling in insertion rule FCCS_20

Hi All,

We are using FCCS DSO application, where business requested to copy data for few accounts from Custom4 top parent member to Custom4 base member.

To achieve the business logic we created a script and we called the same script inside "FCCS_20_Final Calculations_LocalCurrency" and deployed, we can see the expected results, but generally our application consolidation taking 17 minutes around after deploying script inside "FCCS_20_Final Calculations_LocalCurrency" consolidation running more than 1hr, we worked errors & warnings recommendations still we have the performance issue.

Please help us to fix the issue.

Also if I wanted to run this logic for only few entities can this be done, please advise here.