libjpeg-turbo is a derivative of libjpeg that uses SIMD instructions (MMX, SSE2, NEON) to accelerate baseline JPEG compression and decompression on x86, x86-64, and ARM systems. On such systems, libjpeg-turbo is generally 2-4x as fast as the unmodified version of libjpeg, all else being equal.

You probably want imagemin-jpegtran instead.

$ npm install --save jpegtran-bin

var execFile = require('child_process').execFile;
var jpegtran = require('jpegtran-bin');

execFile(jpegtran, ['-outfile', 'output.jpg', 'input.jpg'], function (err) {
	console.log('Image minified!');
});

$ npm install --global jpegtran-bin

$ jpegtran --help

MIT © Imagemin