A company runs a critical microservices application on Amazon ECS with Fargate launch type. The application consists of several services that communicate via internal HTTP calls. The SysOps Administrator notices that during periods of increased load, some services become unresponsive and the health checks fail. The ECS service auto scaling is configured based on CPU utilization, but it does not scale quickly enough. The administrator needs to improve the reliability and responsiveness of the application. The services are stateless and can be scaled horizontally. The current architecture uses a single Application Load Balancer for each service. The ALB health checks are set to a 30-second interval with a 5-second timeout and 2 unhealthy thresholds. The administrator has observed that when a service instance becomes unhealthy, it takes too long for the ALB to stop sending traffic to it, causing errors. What should the SysOps Administrator do to improve the reliability and responsiveness of the application?