Obtain better load time!

smaller.js

import tinify from 'tinify';
import walk from 'walk';
import path from 'path';

tinify.key = '';

const dir = path.join(__dirname, '../src/assets');
const files = [];

const walker = walk.walk(dir, { followLinks: false });

walker.on('file', (root, stat, next) => {
  if (stat.name.match(/(.png|.jpg)/gi)) {
    files.push(`${root}/${stat.name}`);
  }
  next();
});

walker.on('end', () => {
  files.map(file => {
    tinify.fromFile(file).toFile(file);
  });
});