Override Jetpack's mobile theme by loading your own.

jetpack-mobile-override.php

<?php

add_filter( 'jetpack_mobile_stylesheet', function( $stylesheet, $theme ) {
	return 'vip/mytheme-mobile';
} );

add_filter( 'jetpack_mobile_template', function ( $template, $theme ) {
	return 'vip/mytheme-mobile';
	// if our mobile theme is a child theme, we should return the parent:
	// return 'pub/myparenttheme-mobile';
} );