Hello,
Please test the same conversion standalone using PHP CLI, so you can check if the issue comes from Apache configuration or some external setting.
Also please check if there's any change in performace calling Release() to close PHP COM. In TransformDocAdvMSWord.php, instead of:
$MSWordInstance->Quit();
$MSWordInstance = null;
Please try using:
$MSWordInstance->Quit();
$MSWordInstance->Release();
$MSWordInstance = null;
Although calling "Release()" is not needed to close the COM instance, maybe it improves the performance.
If you send to contact[at]phpdocx.com the DOCX you are transforming, we can test it on our test server to check the performance.
Regards.