Worked on the diadoc/diadocsdk-csharp repository to optimize public API performance by introducing HTTP compression support. Focused on reducing bandwidth usage and latency for large payloads, the work involved implementing the Accept-Encoding header in API requests and enabling automatic client-side decompression for GZip and Deflate formats. This approach ensured that external clients could transparently benefit from compressed responses without altering existing API compatibility. Utilizing C# and leveraging expertise in API integration, HTTP client development, and network protocols, the changes provided a foundation for future performance enhancements while directly improving the efficiency and responsiveness of the public API for users.