In Elastic's version 8.13, significant internal improvements were made to the event queue of Elastic Agent and Beats, leading to a reduction in memory usage by approximately 20% across all performance presets. The rewrite of the event queue eliminated the previously misunderstood parameters and internal buffer system, which often led to increased memory use and latency. The new system uses a single fixed buffer, allowing for more efficient memory management and improved event processing. This change ensures immediate return of requested events if available, or a wait up to the specified timeout, thereby enhancing performance and eliminating previous inefficiencies. Internal benchmarks demonstrated substantial memory savings and a 3% reduction in CPU cost per event, underscoring the benefits of the performance presets introduced in version 8.12. These enhancements simplify configuration and optimize performance for common scenarios, with further improvements anticipated in future versions.