Nginx , Ssl slow website - ssl

Question

i installed my SSL to my website ( Nginx , SSL ) . After SSL my website is too slow.
I could not find solution but it's related with ssl.
In same droplet i have 3 apps. 1 php ( laravel ) , 2 ruby ( ruby on rails )apps. But just one of them has SSL.
Conf file for my website with SSL :
server {
listen 443 ssl;
server_name www.guclukal.com;
passenger_enabled on;
rails_env production;
root /home/rails/trbodybuilding/public;
ssl on;
ssl_certificate /etc/nginx/ssl/guclukal.com/ssl-bundle.crt;
ssl_certificate_key /etc/nginx/ssl/guclukal.com/guclukal.key;
ssl_session_timeout 5m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
location ^~ /assets/ {
gzip_static on;
expires max;
add_header Cache-Control public;
}
error_page 500 502 503 504 /500.html;
client_max_body_size 4G;
keepalive_timeout 10;
}
I use this steps to create SSL :
1.mkdir /etc/nginx/ssl
openssl req -new -newkey rsa:2048 -nodes -keyout guclukal.key -out guclukal.csr
i paste guclukal.csr to ssls.com to get files
cat guclukal_com.crt guclukal_com.ca-bundle > guclukal.crt to create crt file
than i made my nginx conf file .