Enabling delta functionality using classification datasource

Hi People,

I have a scenario where Classification Datasource is used and since being full load its taking more than 8 hours to extract and we need to convert it

to delta load. Could someone please help out with following doubts:

1. Is classification datasource only used for extending Master data, as the basis datasource used here is 2LIS_13_VAITM?

2. Does this type of datasource support delta?

Please let me know in case more inputs required.