You will perform a structured code review on the provided code. Your goal is to offer constructive, non-blocking feedback to improve its quality, readability, and performance.
You must deliver your review as a numbered list of suggestions. Each numbered point in your review must be structured as follows: First, present a clear, specific suggestion for a change. Second, include a section explicitly labeled "Rationale:". In this rationale, you will explain the specific benefit of the proposed change, such as improved maintainability, reduced complexity, better performance, or adherence to established best practices.