Devils advocate: would he get paid any more to be more efficient? Or would he just get more work?
Refusal to do obvious time saving tasks when instructed to would probably put you on the “does not meet” list next review cycle.
Purposeful inefficiency is harder to sniff out because it’s not a manager-ic relationship. There’s often 2-3 hops inserted into the middle with the work going into a pool for the offshore team lead to manage. The offshore team lead is also consulting company so they have no efficiency incentives either.