Код-ревью: что блокирует event loop

app.get('/report', (req, res) => {
  const raw = fs.readFileSync('/data/report.json', 'utf8');
  const data = JSON.parse(raw);
  const rows = data.items.filter((x) => x.active).sort((a, b) => a.date - b.date);
  res.json(rows);
});

app.post('/signup', async (req, res) => {
  const salt = crypto.randomBytes(16);
  const hash = crypto.pbkdf2Sync(req.body.password, salt, 600000, 64, 'sha512');
  await db.users.insert({ email: req.body.email, hash, salt });
  res.status(201).end();
});

app.get('/search', (req, res) => {
  const re = new RegExp('^(' + req.query.q + ')+$');
  res.json(products.filter((p) => re.test(p.name)));
});

app.get('/export', async (req, res) => {
  const all = await db.orders.findAll();
  res.send(JSON.stringify(all));
});