turn off jquery, autoptimize and supercache for specific user agent

wp-config.php

<?php
// at the top of wp-config.php
if ( isset( $_SERVER, $_SERVER['HTTP_USER_AGENT'] )
     && false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'some-ua' )
) {
	define( 'DISABLE_SUPERCACHE', true );
	define( 'DONOTMINIFY', true );
	define( 'NO_JQUERY', true );
} else {
	define( 'NO_JQUERY', false );
}

wp-content\themes\mytheme\functions.php

<?php

// put this anywhere in functions.php of your theme

add_action( 'wp_enqueue_scripts', function () {
	if ( ! is_admin() ) {

		if ( NO_JQUERY ) {
			$combined_file = '/assets/js/combined_nojquery.js';
		} else {
			$combined_file = '/assets/js/combined.js';
		}

		wp_enqueue_script( 'combined-js', get_template_directory_uri() . $combined_file, [],
			date( 'YmdHis', filemtime( get_template_directory() . $combined_file ) ), true );

	}
} );

wp-content\wp-cache-config.php

<?php
// put this at the bottom of wp-content/wp-cache-config.php
if ( DISABLE_SUPERCACHE ) {
	$cache_enabled       = false;
	$super_cache_enabled = false;
} else {
	$cache_path = __DIR__ . '/cache/';
}