A company's e-commerce platform experiences performance degradation during periods of high traffic. The application utilizes a three-tier architecture consisting of a web tier, application tier, and database tier, and operates using synchronous transactions. The development team has pinpointed bottlenecks within the application tier and is seeking a sustainable solution to enhance the application's performance.

As an AWS Certified Developer Associate, which of the following solutions would you recommend to achieve the necessary application response times while managing traffic spikes?