The Performance Efficiency pillar of the AWS Well-Architected Framework is the most relevant to this requirement. This pillar focuses on the efficient use of computing resources to meet system requirements, and the ability to maintain that efficiency as demand changes and technologies evolve. Performance efficiency involves the use of advanced technologies, computing power, and the ability to effectively and automatically scale resources up or down in response to loads, which directly impacts how the application handles varying traffic patterns. The other listed pillars such as Operational Excellence, Security, and Reliability do not directly deal with resource adjustment and performance maintenance in response to traffic patterns, although they are equally important in their respective focus areas.