I want to update a record on ABC__c object.

There are two fields "A"  and "B" on this record.

I have a few decision elements one to update "A" and one to update "B" and two record update elements. 

Based on first Decision Element, A value is updated vis a record update element. Then it flows to the next decision elements, to set the value for B, a record update element updates the record.

My question is to understand if having multiple record update elements for the same record causes any performance or DML issues?