We have detected some minor things that we recommend changing in order to have a better Mautic experience:
You have PHP version 5.4.45 installed which is no longer supported by the PHP project. We highly recommend upgrading your server to a newer PHP version. You can view which PHP versions are actively supported at PHP.net.
The intl extension is not performing as expected. This is a common issue on PHP 5.3 64-bit Windows builds. Please check that PHP's intl extension is installed and configured properly.
Install and enable the intl extension.
For optimal performance, it's suggested to install an accelerator (like APC).