Select statement with inner joins and "For all entries"

Hello,

I need to extract data from the tables,VBRK and VBRP for all entries in EORD where vbrp-matnr = eord-matnr.

I first select materials from EORD based on the purchasing org. and vendor.

Then I use inner joins for VBRK and VBRP tables and for-all-entries in itab in a select statement. While it works, I know it's a performance killer. My report takes around 45 mins. to execute, mainly because of this.

Is there any way to fix it?