ftp.auth() has very lengthy timeout

[timburgess]

With a user supplied IP where there is no host at that IP, ftp.auth() takes a long time to throw ETIMEDOUT. Using the following code, on OS X I tested to a local IP with no device at that address. It took about 80 seconds to timeout. Shouldn't it be much less? I'm thinking 4-5 seconds (in terms of enduser patience until their mistake is evident).

var os = require("os"),
    fs = require("fs"),
 JSFtp = require("jsftp");

var HOST = '192.168.0.99';
var PORT;
var USER = 'tim';
var PWD = 'blah';
var ftp = new JSFtp({
    host: HOST
});
// connect to remote
ftp.auth(USER, PWD, function (err, data) {
    if (err) { 
        console.log('Failed to connect to remote: ' + err);
        return;
    }
    // emit connect
    console.log('Connected ' + data.text);
    ftp.raw.quit(function (err, data) {
        console.log('quit:' + data);
    });
});