FM or View to read AUFK and AUFM

Hello Experts,

I am an Abaper and am writing a report to get details of Prduction Orders.

I got the Production Order details from from table AUFK and AFKO.

Now I need to get the Material Document details based for all the Production Order from the Table AUFM.

But the table contains large amount of data and the performance is very slow.

Is there any standard FM or view that I can use to read the data from the table.

Thanks in advance.