The DevOps team at an auditing firm has deployed its flagship application on Elastic Beanstalk that processes invoices uploaded by customers in CSV form. The invoices can be quite big, with up to 10MB and 1,000,000 records total. Processing is CPU intensive which results in slowing down the application. Customers are sent an email when the processing is done, through the use of a cron job. The auditing firm has hired you as an AWS Certified DevOps Engineer Professional to build a solution for this requirement. What do you recommend for the application to ensure a good performance and address scalability requirements?