During December 2024, contributed a performance optimization to the symfony/symfony repository by refactoring the LazyInstantiator component for improved JSON encoding efficiency. The work focused on backend development using PHP, streamlining the lazy-loading path by eliminating redundant computations and directly referencing the generated file path for lazy ghost class generation. This approach reduced unnecessary processing steps in the JSON encoding workflow, resulting in better throughput and CPU efficiency for API-heavy applications. The refactor was carefully scoped to enhance maintainability and traceability, minimizing impact on the public API while delivering measurable runtime improvements for Symfony’s core serialization processes.