At Lightspeed, the integration of multiple iOS projects and their dependencies necessitated a unified approach to continuous integration (CI), leading to the adoption of CircleCI for its dependability and standardization benefits. Initially, the transition resulted in longer run times compared to their previous in-house Jenkins setup. However, through strategic improvements like increased parallelism, caching, and optimized test plans, the team significantly reduced test run times from 1.5 hours to 30 minutes, despite the complexity of maintaining state across clean instances for iOS testing. These enhancements not only improved speed but also reduced the flakiness and maintenance burdens of their CI workflow, allowing the team to focus on productive tasks without hardware-related interruptions. The changes exemplify how optimizing CI pipelines can streamline development processes and enhance productivity, setting a foundation for future improvements.