Tanmay's response lacks depth and specificity compared to the benchmark response. While he mentions using indexes and avoiding certain queries, he does not provide detailed examples or explain his use of JOINs or CTEs, which are crucial for optimizing SQL queries in complex projects like AtliQ Mart. He could have improved his response by detailing how he used JOINs to combine data from multiple tables and how CTEs helped simplify complex queries, similar to the benchmark response. This would demonstrate a deeper understanding and practical application of SQL optimization techniques.