use php-fpm

[ghost]

Using php-fpm has a big performance improvement, consider using that instead of mod_php. See https://github.com/fkooman/php-remote-storage-deployment/blob/master/storage.example-httpd.conf for example Apache configuration using php-fpm.

[pierreozoux]

In this case, I'll use nginx in front.
(It is what I always do, but as your instructions were with apache..)

[ghost]

Yeah that is also good! I am not sure it was properly tested with nginx yet, so that would be helpful by itself! :D Note the X-Sendfile that was used and the limit on the request body.