Page Edit (on this) suddenly extremely slow

  • Nothing in the system changed, except we were adding new pages. Everything worked fine until Saturday when we logged off for the weekend. On Monday when we began developing again, the Page Edit was extremely slow.
    We went through all the troubleshoot suggestions we could find on the web – the whole range from cache management, plugin disable/enable, even reconfigured LiteSpeed Cache, and looked up IP addresses that accessed the site and more.
    Is it possible that the DB table for pages data got corrupted somehow? We created about 20 static pages.
    We tested whether it is the system as a whole or only the Page Edit. Here are the results of some tests:

    • Opening the Media Library from the WP Dashboard takes 6 seconds
    • Opening All Posts from WP Dashboard takes 6 seconds
    • The list of Pages takes 6 sec to load
    • All other links from WP Dashboard seem to load as usual
      However
    • Opening a specific page to Edit takes 45 seconds
      The test page consists of a few blocks: a header, a paragraph with 6 words, an icon with weight 22.9 kB and no loops at all – total weight is just about nothing
    • Trying to change the icon from the Page Edit window took 1 minute 52 seconds for the Media Library to open
    • Saving the page took 55 seconds – it is usually almost immediately.

    So accessing Media Library from WP Dashboard is fine, but trying to access it from Page Edit is suddenly a disaster – timewise. We would be happy with a 6 second wait to open an existing page, but 45 seconds!!!
    The 1 minute 52 seconds for the Media Library to open from within Page Edit suggests some module connection problem, but that would not explain why the saving also takes forever.
    Please advise

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

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  • Thread Starter tvejacques

    (@tvejacques)

    “Page Edit (on this) suddenly extremely slow”
    should be
    “Page Edit (only this) suddenly extremely slow”

    Moderator bcworkz

    (@bcworkz)

    Is it possible that the DB table for pages data got corrupted somehow?

    It’s possible, but if that were the case I’d expect you to experience outright errors instead of just sluggishness.

    Try deactivating all plugins to see if things significantly improve. If they do, restore plugins one at a time, testing after each, until the problem recurs. The last activated module is the cause.

    Use your browser’s developer tools to identify more specifically where the slow down is. The Network tab shows you server response times. If many of the requests are exceedingly slow, the problem is with your server and is external to WP. The performance tab will show you proportionally, everything involved in rendering a page. You can then focus on improving the worst offenses.

    If you use Chrome, the Lighthouse tab will give you general recommendations on improving overall page speed.

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