Support » Fixing WordPress » Security Update 4.8.3 slows site

  • Resolved prburg51

    (@prburg51)


    After applying the WordPress security update 4.8.3 yesterday our site has slowed to a crawl. Takes anywhere from 20sec to a minute to load a post or page. Can I back this core change out and what files need to change?

    The page I need help with: [log in to see the link]

Viewing 5 replies - 1 through 5 (of 5 total)
  • Moderator t-p

    (@t-p)

    Slowness/high CPU usage could be due to (but not limited to):
    – A poor or memory intensive theme. Switch to the WordPress default theme and test loading time and see if you see a difference. If you do, may be your theme can be re-written to be more efficient.
    – Poor or memory intensive plugins. One by one disable plugins and test loading time and see if you see a difference. If you do, may be that plugin can be re-written to be more efficient.
    – your server is slow (e.g., “process hang”, overload, you get a lot of visitors, other problems, etc.); generally, every inexpensive host out there is slow.
    – I don’t know if you use CloudFlare or not but if you do I would suggest deactivating it and seeing if it helps. Also sometimes a good purge of the cache on CloudFlare can help.
    – Lots of images can cause slowness. Also images loaded without compression.
    – Lots of external content (facebook/ gravatar/ google adds, etc.) and redirects in general tends to slow sites down.

    Test your site at:
    https://gtmetrix.com/leverage-browser-caching.html

    Also, review :
    http://codex.wordpress.org/WordPress_Optimization

    Moderator Steven Stern (sterndata)

    (@sterndata)

    Volunteer Forum Moderator

    Can I back this core change out and what files need to change?

    4.8.3 is an important security update.

    It’s unlikely that the changes would affect your site speed.

    Mr.P

    (@paulo-paulino)

    I have exactly the same problem since the update, all my wordpress sites are killing my server and before this update all run smoothly.

    Thread Starter prburg51

    (@prburg51)

    Problem was a plugin conflict with the security update. Backed out plugins one by one. Found out to be a a Genesis plugin, updated that one and a Contact forms one just in case. Site now back to normal speed.

    Moderator t-p

    (@t-p)

    Side note to @paulo-paulino, If the troubleshooting already posted made no difference for you, then, as per the Forum Welcome, please post your own topic.

Viewing 5 replies - 1 through 5 (of 5 total)
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