A company that operates quick-service restaurants experiences high sales traffic for 4 hours daily, with lower traffic outside these peak hours. Their point of sale and management platform, hosted on AWS, utilizes Amazon DynamoDB with a backend configured for provisioned throughput mode, set at 100,000 RCUs and 80,000 WCUs to accommodate peak usage. The company seeks to minimize DynamoDB costs and reduce IT operational overhead. Which solution offers the most cost-effective approach to achieve these goals?