After setting up blog(s) on server, create themes, write posts, get traffic, then we need to optimize the websites to be fast and efficient. There are 2 webtools to check the speed of our pages.
3. Compress and deflate files at the server level for faster page loading. Add commands in .htaccess of the blog.
# BEGIN Compress text files
# END Compress text files
4. To reduce CPU usage – Turn off the WP_Cron in the wp_config.php file and install super cache plugin.
5. Spams also cause CPU usage – to prevent spam to login as administrator – add the ip address and deny all others in .htaccess.