Table from SAP ->BODS

Hellow Everyone ,

I am pulling EDIDS table from SAP into BODS and filtering out the records , But my Job is taking more time to complete .

ABAP data flow is out of  my options  , Is there any other way i can make this work faster. Some where i have read that we can use FM  /BODS/RFC_READ_TABLE for my scenario but i assume that BODS also execute the same function to pull the table records.

Is there any explicit difference between pulling table directly in BODS and calling it out through /BODS/RFC_READ_TABLE ?

And also is there any thing i can add up or change to get this query to run faster ?

Thanks,

AJ.