Apology for the inconvenience.
Unfortunately, there is no built-in setting available to disable the autoplay on the image carousel within the property pages. However, this can be achieved by using a small piece of custom JavaScript. Please add the following JS code to your Template Options -> Custom Code -> Custom JS
$(document).ready(function() {
    // Stop autoplay for the carousel with id 'spproperty-slider-alt'
    $('#spproperty-slider-alt').trigger('stop.owl.autoplay');
});
Please let us know how you’d like to proceed.
Kind regards