node.js - NodeJs website TTFB is very high and site is running very slow -

i have created website in nodejs express & jade. when load simple login page less content, taking time load. it's ttfb high (ref screenshot attached.) below app.js code. not sure i'm doing wrong.

app.js

// packages var express = require('express'); var path = require('path'); var favicon = require('serve-favicon'); var logger = require('morgan'); var cookieparser = require('cookie-parser'); var bodyparser = require('body-parser'); var dbhelper = require('./routes/dbhelper.js') var common = require('./routes/common.js') var session = require('express-session') var http = require('http');  var app = express(); // view engine setup app.set('views', path.join(__dirname, 'views')); app.set('view engine', 'jade');  app.use(session({     secret: 'keyboard cat',     resave: false,     saveuninitialized: true,     cookie: { secure: true } }))  // uncomment after placing favicon in /public //app.use(favicon(__dirname + '/public/favicon.ico')); app.use(logger('dev')); app.use(bodyparser.json()); app.use(bodyparser.urlencoded({ extended: false })); app.use(cookieparser()); app.use(require('stylus').middleware(path.join(__dirname, 'public'))); app.use(express.static(path.join(__dirname, 'public'))); //app.locals.basedir = path.join(__dirname, 'views');  // set mustbe config var mustbe = require("mustbe"); var mustbeconfig = require("./mustbeconfig"); mustbe.configure(mustbeconfig);  // routes var routes = require('./routes/index'); var users = require('./routes/users'); var dashboard = require('./routes/dashboard'); var monitor = require('./routes/monitor'); var resetpassword = require('./routes/resetpassword'); var archive = require('./routes/archive'); var archivelist = require('./routes/archivelist'); var archivesetup = require('./routes/archivesetup');   app.locals.moment = require('moment');  app.use(function (req, res, next) {     res.locals.session = session;     next(); });   // make database connection available router app.use(function (req, res, next) {     req.sessionid = req.sessionid;     req.db = dbhelper.sql;     req.config = dbhelper.config;     req.actionoutput = common.actionoutput;     req.actionstatus = common.actionstatus;     req.changeemployer = common.changeemployer;     // redirect login page if no session found     if ((session.employee == null || session.employee == undefined || session.employee == '') && (req.url != '/' && req.url != '' && req.url != '/login'))         res.redirect('/');     // redirect dashboard if session exists & redirecting login page     else if ((session.employee != null && session.employee != undefined && session.employee != '') && (req.url == '/' || req.url == '' || req.url == '/login'))         res.redirect('/dashboard');     else         next(); });    app.use('/', routes); app.use('/users', users); app.use('/dashboard', dashboard); app.use('/monitor', monitor); app.use('/resetpassword', resetpassword); app.use('/archive', archive); app.use('/archivelist', archivelist) app.use('/archivesetup', archivesetup);   process.on('uncaughtexception', function (err) {     console.log('caught exception: ${ err}');     var eid = saveerrorlog(err.message, err.stack, 'a', err.address); });   app.use(function (err, req, res, next) {     if (!err)         return next();     var eid = saveerrorlog(err.message, err.stack, req.connection.remoteaddress , err.path);     // check if request ajax     var is_ajax_request = req.xhr;      var op = new common.actionoutput();      op.actionstatus = common.actionstatus.error;     op.message = err.message;     res.send(op); });  function saveerrorlog(message, completeerror, ip, url) {     // logged in user     var userid = null;     if (session.supportuser != null && session.supportuser != undefined && session.supportuser != '') {         userid = session.supportuser.userid;     } else if (session.employee != null && session.employee != undefined && session.employee != '') {         userid = session.employee.employeeid;     }     // log error database      var errorlogid = 0;     var sql = dbhelper.sql;     var conn = new sql.connection(dbhelper.config);     conn.connect().then(function () {         // stored procedure          var request = new sql.request(conn);         request.input('userid', sql.bigint, userid);         request.input('message', sql.varchar(500), message);         request.input('completeerror', sql.varchar(2000), completeerror);         request.input('ip', sql.varchar(50), ip);         request.input('url', sql.varchar(50), url);         request.execute('usp_saveerrorlog', function (err, recordset, returnvalue) {             if (!err && recordset[0][0].validationcode == null) {                 errorlogid = recordset[0][0].errorlogid;             } else {              }             return errorlogid;         });     }); }  // catch 404 , forward error handler app.use(function (req, res, next) {     var err = new error('not found');     err.status = 404;     next(err); });  // error handlers  // development error handler // print stacktrace if (app.get('env') === 'development') {     app.use(function (err, req, res, next) {         res.status(err.status || 500);         res.render('shared/error', {             message: err.message,             error: err         });     }); }  // production error handler // no stacktraces leaked user app.use(function (err, req, res, next) {     res.status(err.status || 500);     res.render('shared/error', {         message: err.message,         error: {}     }); });   module.exports = app;  //app.listen(1234, function () { //    console.log('server starts on port: ' + 1234); //});  http.createserver(app).listen(1234, function () {     console.log('express server listening on port ' + 1234); }); 

i have removed database related work app.js still facing same issue. appreciable.

we have used this, cache jade content , reduce ttfb

/* home page. */ router.get('/', function (req, res) {     var abs = session.employers;     var options = {cache: true , title: 'express'};      //method 1     //var template = jade.compilefile('./views/login/index.jade', options);     //res.send(template({ title: 'express' }));      //method 2     res.send(jade.renderfile('./views/login/index.jade', options));  });