<a href="https:&#x2F;&#x2F;kpdecker.github.io&#x2F;six-speed&#x2F;" rel="nofollow">https:&#x2F;&#x2F;kpdecker.github.io&#x2F;six-speed&#x2F;</a> is what I based my comment on. It seems to have improved since I last looked and ES6 will probably suffice performance-wise.<p>Things like destructuring, are still 10x slower in Node 5.8 than through Babel, for example (and even 100x slower in Firefox). The spread parameter is similar. They&#x27;re both used a lot in modern JS (when using Redux, for example). It&#x27;s good that there are native implementations now, but both for performance and compatibility most people will&#x2F;should probably keep transpiling ES6 for now.