Disk I/O is frequently the limiting factor in build times within GitHub Actions. Users have suggested that integrating tools like `eatmydata` can accelerate package installations by bypassing certain disk write operations, thus reducing the time taken when using traditional HDDs. However, the ultimate solution for boosting build performance is the use of high-performance NVMe storage, which provides superior throughput and IOPS compared to network-attached disks. This is evidenced by practices at WarpBuild, which claims significant performance enhancements by utilizing local storage solutions and faster processors for their build runners.