The responsive slider doesn’t quite look right on a mobile device

You could create 2 slideshows (one for mobile, one for desktop) then use this plugin to display the relevant slideshow on each device:

https://wordpress.org/plugins/wp-mobile-detect/

Then setup your shortcode like this:

PHP
1
[device][metaslider id=123][/device] [notdevice][metaslider id=456][/notdevice]