Nginx memory limit

Hi, I'm using cpanel's nginx in proxy mode and noticed that it can consume a quite large amount of ram per thread (2GB): We used Engintron but we're migrating to cpanel's native nginx. I noticed that it is a bit "plain" in the optimization department so we want to use some of the Engintron's config in to it. Where is the recommended file to put this? in /etc/nginx/ea-nginx/cache.json? client_body_buffer_size 128k; client_body_timeout 30s; # Use 5s for high-traffic sites client_header_timeout 30s; # Use 5s for high-traffic sites client_max_body_size 128m; keepalive_timeout 30s; open_file_cache max=200000 inactive=20s; open_file_cache_errors on; open_file_cache_min_uses 2; open_file_cache_valid 30s; port_in_redirect off; reset_timedout_connection on; send_timeout 30s; sendfile on; server_name_in_redirect off; server_names_hash_bucket_size 1024; server_names_hash_max_size 1024; server_tokens off; tcp_nodelay on; tcp_nopush on; types_hash_max_size 2048; Thanks, Ignacio