Bring the case back to the objective at meaningful transitions, not after every small calculation.

A mini-synthesis is useful when you finish a branch, receive evidence that changes the hypothesis, or need to explain what you will investigate next. Repeating the objective after every step becomes mechanical.

A concise bridge might be: "This suggests demand is not the problem, so to answer whether the client can restore profit, I would move to cost drivers."

Use the objective as a decision filter throughout the case, but verbalize the connection when it helps the interviewer understand how the analysis is progressing. A good rule is to synthesize whenever the answer to the next question depends on what you just learned, because that is when the connection adds value.