Apapche + php-fpm + mysql too slow on powerful server
Solution 1:
I think you could set nginx to cache and reverse proxy the requests to apache and Cloudfront. I did that a time ago. And solve my problem of latency.
My setup is: EC2 + RDS + Cloudfront/S3
I setup my EC2 with nginx caching and proxying request of static files to cloudfront that points to a bucket on S3. And chaching and proxying requestes that needs to run on server-side to apache. And set my database service on RDS.
That solves my problem and decreased my latency to milliseconds.