Difference between table CAUFV and AUFK

Hi all -

I would like to make a query about the difference between WO data retrieval from tables CAUFV(View "Order Headers PP/CO") and AUFK(Order master data). Since CAUFV is a view table, it is taking more time to retrieve rather than retrieving from AUFK.

However, if I take from AUFK I am afraid I will get inconsistent data since CAUFV has some checks with other tables. All the field values I need in CAUFV are actually in table AUFK as well.

a. Is there any impact if I change from CAUFV to AUFK?

b. Please also advise if I can do the same for tables VIQMEL and QMEL.