Chrome contains special optimizations that are only active in asm.js mode: <a href="http:&#x2F;&#x2F;blog.chromium.org&#x2F;2015&#x2F;07&#x2F;revving-up-javascript-performance-with.html" rel="nofollow">http:&#x2F;&#x2F;blog.chromium.org&#x2F;2015&#x2F;07&#x2F;revving-up-javascript-perfo...</a><p>I don&#x27;t know what you&#x27;re arguing here. It doesn&#x27;t matter what approach is taken to optimizing performance, all that matters is the performance achieved. Chrome is simply slower. Microsoft is to open source Edge&#x27;s JavaScript engine (<a href="https:&#x2F;&#x2F;blogs.windows.com&#x2F;msedgedev&#x2F;2015&#x2F;12&#x2F;05&#x2F;open-source-chakra-core&#x2F;" rel="nofollow">https:&#x2F;&#x2F;blogs.windows.com&#x2F;msedgedev&#x2F;2015&#x2F;12&#x2F;05&#x2F;open-source-c...</a>), so perhaps the Chrome developers can study that for ideas on speeding up Chrome.