Title: Serious performance issues
Last modified: August 31, 2016

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# Serious performance issues

 *  [Tomeranaray](https://wordpress.org/support/users/tomeranaray/)
 * (@tomeranaray)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/serious-performance-issues-1/)
 * hi,
 * We’re running a science blog on WordPress, and we’re experiencing major performance
   issues with pages taking up to 25 seconds to load. The backend was also suffering
   up to the point our editors refused to work with it.
 * After evaluation, we decided to do the following:
    – fresh WP-install with reimport
   of all content (no copy of DB) – compressed all images – switched host – enabled
   server and client-side caching, GZIP compression, memcache, … – enabled CDN –
   minify – disabled all plugins
 * The result: our backend is now acceptabel and most of the pages on our front-
   end as well. Except some pages that again take up to 25 seconds (including our
   homepage). Page testing tools reveal that the time to first byte can be up to
   15 seconds on affected pages.
 * The question: how do we troubleshoot this?
    – plugin vendors suggest conflicts
   and point to each other: we have tried disabling all plugins without any improvements–
   the host suggests to enable a caching plugin: this does off course help but it
   only masks the problem. If we work on the page or the cache is not up to date,
   we cannot have people wait 25 seconds for the page – after elimination, the only
   possible culprit is the theme.
 * Or are we missing something crucial?
    Thanks!
 * [http://www.heldenvandewetenschap.be](http://www.heldenvandewetenschap.be)

Viewing 1 replies (of 1 total)

 *  [George](https://wordpress.org/support/users/ccto/)
 * (@ccto)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/serious-performance-issues-1/#post-7342222)
 * It takes around 6 – 8 seconds to get the HTML source file.
    # time curl [http://www.heldenvandewetenschap.be/](http://www.heldenvandewetenschap.be/)
 * How large is your database? I guess you might have some database performance 
   issue.

Viewing 1 replies (of 1 total)

The topic ‘Serious performance issues’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [George](https://wordpress.org/support/users/ccto/)
 * Last activity: [10 years, 1 month ago](https://wordpress.org/support/topic/serious-performance-issues-1/#post-7342222)
 * Status: not resolved

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