Hello,
1) I have checked your site using Safari and don’t see issues with the parallax image https://gyazo.com/08023a6647364ea1def940235115c349
Besides the parallax image option is the default Elementor option, it’s not our theme option. So, you may switch theme and check how it works with the default WP theme.
2) Unfortunately, it also does not depend on our theme because Elementor scripts make the the row full width. If you enable the default theme (Storefront for example) and check the page you’ll see the same. It would better to address these questions to the Elementor plugin author.
We are able to help with our theme options or our theme custom Elementor elements https://prnt.sc/tf9dgo
Regards