Hi
There is a bug when it comes to scrolling feature of the Visual Composer when used in the Tab element. Please kindly go to X > Theme Options > JS and add the code below:
jQuery( function($) {
$(document).on('touchstart click', 'li.vc_tta-tab a,li.vc_tta-tab,.vc_tta-panel-title', function(){
$('html, body').stop();
});
});
The code above will disable the scrolling feature of the Visual Composer Tab which has the bug.
Now, regarding the Tab feature of the Visual Composer in Mobile devices, whatever we give is a band-aid and a patch that might break at some point. The Tab feature of the Visual Composer is not meant to be used on mobile devices, and it is recommended to have it as it is, which shows all the content. Alternatively, you can hide the tab entirely for mobile devices and use another method to display the information on mobile devices.
As an alternative you can recreate the page with the Cornerstone plugin which has a better Tab element. I suggest that you add a test page and use the Cornerstone plugin to add the Element Tab and see if it fits your needs. If yes, then you can recreate the page with that plugin. Please consider that you can not use both Cornerstone and Visual Composer on the same page. You need to use one of them per page.
Also, by Visual Composer I mean the WP Bakery Page Builder. And, I would have a complete backup of my website if I were to recreate the page with Cornerstone.
Thank you.