Drupal site is very slow how to recover that,Why performance slow of site,how to speed up of fetch data from mysql db. admin/config/development/performance below Cache pages for anonymous users, Compress cached pages, Aggregate and compress CSS files, Aggregate JavaScript files all are enabled and Uninstalled Unused Module also but still getting performnce is Slow , please help me on this.
you might try some of these resources (for Drupal 7):
There are a number of steps that you can take to optimise your Drupal installation. Some of these will depend on your server management situation. For example, if you can implement an optimised database environment this can make a difference.