Есть фронтенд с NGINX. При заходе на сайт до начала загрузки (т.е. время соединения ) около 30 секунд, потом все нормально, контент загружается быстро. Как можно уменьшить время отклика?

user nginx;
worker_processes 2;
worker_rlimit_nofile 100000;

error_log /var/log/nginx/error.log;
#error_log /var/log/nginx/error.log notice;
#error_log /var/log/nginx/error.log info;

pid /var/run/nginx.pid;


events {
worker_connections 5024;
use epoll;
}


http {
include /etc/nginx/mime.types;
default_type application/octet-stream;

log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

access_log /var/log/nginx/access.log main;

sendfile on;
tcp_nopush on;
tcp_nodelay on;
server_tokens off;
gzip on;
gzip_static on;
gzip_comp_level 5;
gzip_min_length 1024;
keepalive_timeout 65;
limit_zone myzone $binary_remote_addr 10m;

# Load config files from the /etc/nginx/conf.d directory
include /etc/nginx/conf.d/*.conf;

server {
listen 80 default;
rewrite ^ https://www.test.com/;
}
}


SSL:

server {
listen 443 default;
server_name www.test.com ;

ssl on;
ssl_certificate /etc/nginx/conf.d/certificate.cer;
ssl_certificate_key /etc/nginx/conf.d/rsa.key;

ssl_session_timeout 10m;

ssl_protocols SSLv2 SSLv3 TLSv1;
ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
ssl_prefer_server_ciphers on;

if ($host = "test.com" ) {
rewrite ^ https://www.test.com/;
}
location / {
proxy_pass https://IIS:500/;
proxy_redirect off;
proxy_ignore_client_abort off;
proxy_connect_timeout 600;
proxy_send_timeout 600;
proxy_read_timeout 600;
proxy_ignore_headers Expires Cache-Control;
proxy_hide_header Vary;
}
}