Title: Two Critical Performance Issues
Last modified: July 3, 2020

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# Two Critical Performance Issues

 *  [Humberto Mancuso](https://wordpress.org/support/users/hmancuso/)
 * (@hmancuso)
 * [5 years, 11 months ago](https://wordpress.org/support/topic/two-critical-performance-issues/)
 * Hi Alex. Hope you are well and protected.
 * According to wordpress, Quiz Tool is causing two critical performance issues,
   namely:
 * (1) The REST API encountered an error.
    The REST API is one way WordPress, and
   other applications, communicate with the server. One example is the block editor
   screen, which relies on this to display, and save, your posts and pages. The 
   REST API request failed due to an error. Error: cURL error 28: Operation timed
   out after 10001 milliseconds with 0 bytes received (http_request_failed)
 * (2) Site Cannot Complete a Loopback Request
    Loopback requests are used to run
   scheduled events, and are also used by the built-in editors for themes and plugins
   to verify code stability. The loopback request to your site failed, this means
   features relying on them are not currently working as expected. Error: cURL error
   28: Operation timed out after 10001 milliseconds with 0 bytes received (http_request_failed)
 * NOTE: When I deactivate the plugin, the error messages disappear.
    Can you please
   look into that when you have a chance?

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Alex Furr](https://wordpress.org/support/users/alexfurr/)
 * (@alexfurr)
 * [5 years, 11 months ago](https://wordpress.org/support/topic/two-critical-performance-issues/#post-13074687)
 * Hello again,
 * I can’t reproduce these errors – cant you tell me where you are seeing them exactly?
   
   Thanks
 * Alex
 *  Thread Starter [Humberto Mancuso](https://wordpress.org/support/users/hmancuso/)
 * (@hmancuso)
 * [5 years, 11 months ago](https://wordpress.org/support/topic/two-critical-performance-issues/#post-13074695)
 * Hi Alex.
    I see in a “Site Health Box” in the Dashboard (/wp-admin/site-health.
   php). Those errors appear under a “Should Be Improved” warning.
 * Humberto

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Two Critical Performance Issues’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [Humberto Mancuso](https://wordpress.org/support/users/hmancuso/)
 * Last activity: [5 years, 11 months ago](https://wordpress.org/support/topic/two-critical-performance-issues/#post-13074695)
 * Status: not resolved