A software development company is optimizing their new e-commerce platform to enhance user experience through improved load times and responsiveness. In aligning with industry standards for cloud architecture, which of the following would be a primary consideration unique to enhancing 'Performance Efficiency' versus other architectural concerns?
Ensuring services have fault-tolerant designs to withstand component failures without impacting users.
Utilizing spot instances and reserved instances strategically to balance load and reduce expenditures.
Redeploying services in data centers that are in closer proximity to the majority of users to decrease response times.
Identifying underutilized resources through monitoring tools and scaling them down to eliminate waste.
Implementing an automated scaling solution to adjust resource allocation in line with current traffic.
Adopting a microservices architecture to streamline updates and maintenance activities.