I have used the pro theme when I activate this theme web site is very slow else web site is working very fine.
Also when I implemented all the method it is not working for me any more in this theme any custom code to make web site fast the code on function.php is not working
Please update the theme to latest version for a possible solution.
I can see you are using a very older version of the theme.
Please follow the best practices when updating your theme and plugins. See
To be able to have auto updates, you will have to validate your theme installation.
To do this, please follow the steps on this link:
Once you are able to validate your installation, you should be able to get the automatic updates. However, please note that automatic updates does not mean the plugins and X will update by themselves when there is a new release. It means that you will be able to get the update notification and be able to do the update from the dashboard in few clicks rather than manually updating through FTP.