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Your LimeSurvey version:5.5.0
Own server or LimeSurvey hosting: Own server
Survey theme/template:
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(Write here your question/remark)when I want to display the statistics of the responses of a questionnaire for 40,000 responses after waiting for one minute the screen displays the following error message "Geteway Timeout// The gateway did not receive a timely response from the upstream server or application"

PHP : 7.5 Drupal
Web application Httpd

I ve allreday upgraded the memory size oh php in php.ini and time session of httpd
Best regards

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