Nginx configuration with Boost Help

Hi, I am running my website Pakreviews.com on Nginx with Boost enabled but I am not seeing any performance difference by Enabling or Disabling boost at all. Here is my nginx configuration file, Please help me out figuring what might be the issue

server {
listen 80;
server_name pakreviews.com;
rewrite ^(.*) http://www.pakreviews.com$1 permanent;
}

server {
listen 80;
server_name www.pakreviews.com;

access_log /www/projects/pakreviews/logs/access.log;
error_log /www/projects/pakreviews/logs/error.log;

location = / {
root /www/projects/pakreviews;
index index.php;
}

location / {
root /www/projects/pakreviews;
index index.php index.html;

if (-f $request_filename) {
  access_log        off;
  expires           30d;

  break;
}

if (!-e $request_filename) {
  rewrite  ^/(.*)$  /index.php?q=$1  last;
  break;
}

}
error_page 404 /index.php;

# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}

location ~ .php$ {
fastcgi_pass 127.0.0.1:49232; #this must point to the socket spawn_fcgi is running on.
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /www/projects/pakreviews$fastcgi_script_name; # same path as above

fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;

fastcgi_param SCRIPT_NAME $fastcgi_script_name;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param DOCUMENT_URI $document_uri;
fastcgi_param DOCUMENT_ROOT $document_root;
fastcgi_param SERVER_PROTOCOL $server_protocol;

fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE nginx/$nginx_version;

fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REMOTE_PORT $remote_port;
fastcgi_param SERVER_ADDR $server_addr;
fastcgi_param SERVER_PORT $server_port;
fastcgi_param SERVER_NAME $server_name;

}

location ~ /.ht {
deny all;
}

}