How to disable CloudFlare’s Rocket Loader on scripts if the user is logged in without side effects

I’ve modified this script to add the attribute data-cfasync=’false’ to all script tags if the user is logged it. It appears to work however I seem to be having some issues with the scripts loading in later on perhaps in a different order.

// disable Cloudflare Rocket Loader if user is logged in

add_filter( 'script_loader_tag', 'cfrocketloader_ignore_script', 10, 3 );

function cfrocketloader_ignore_script( $tag, $handle, $src )
{
    if ( is_user_logged_in() ) 
    {
        return str_replace( "src='", "data-cfasync='false' src='", $tag );
    }
}