Function for repayment interest rate - Treasury

I'm using the next functions FIMA_CONDITIONS_CONVERT and FIMA_ZINSREFERENZ_AUFLOESEN in CML.

In the first one, i'm sending the conditions that i found in the tables VZZKOPO and VZZKOPA (all the fields) with the contract number, but this take too much time to execute and i want to know wich specific fields of VZZKOPO and VZZKOPA i have to use.

The structure EKOND is the input of the 2da function (I_KONDI). E_KONDI shows me the dates and the interest rate.

Thx.

JOhn B.