This is telling you that WordPress (or your server) is taking too long to start sending a response. In this case, WP Super Cache alone usually isn’t enough to fix this if something else is slow.
Some recommendations for improvement:
Update to a fast PHP version (8.1/8.2+) and consider dedicated (or different) hosting if TTFB stays >1000 ms on simple pages.
Disable heavy plugins, test with a default theme, and optimize the database to reduce slow queries.
Optimize your database with a reputable tool, or from your host’s panel, to cut down slow queries.
I tried disabling the plugins one by one to identify the cause of the issue. The problem was finally resolved after deactivating the WP Super Cache plugin.
After that, the performance improved and the median server response time became 354 milliseconds, which is below the recommended threshold of 600 ms.
Could you please let me know what steps are required to continue using the plugin without causing this issue again? Your guidance would be appreciated.
Hey @mkamel9089 – Could you please activate the WP Super Cache plugin again, then go to Settings » WP Super Cache » Advanced and enable Expert mode? After enabling it, let us know if you notice any changes.
Also, in our last reply, we recommended updating to a faster PHP version (8.1/8.2+) and optimizing your database. I wanted to check whether you had a chance to try those suggestions as well?
Do you have updates about the above? We usually close inactive threads after one week of no activity, but we want to make sure we’re all set before marking it as solved. Thanks!
