My Name is Raviprasad, working as a cloud systems administrator. I have 2+ years of hands on experience in working with AWS services like AWS,S3,RDS,Cloudfront and 3+ years of working experience in Linux platform.
Currently I'm maintaining 6 production CentOS based LAMP servers(these are also configured by me) for one of my client which are hosting their custom business application. All these instances are hosted in Amazon Web Services and tuned very well to handle the good amount of traffic. These instances are also security hardened by following the best practices. I've also integrated NginX as a caching solution and load balancer (Like AWS LB) to improve the performance of the Apache servers. All these servers are running under selinux enforcing mode.
I'm interested in solving the Magento performance related issue you reported here. I'm ready to work using the teamviewer. Feel free to message me if you have any questions.