From 1860064da0bb6fe575bfda157f033be70d845ea8 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Wed, 5 Jul 2017 23:31:07 -0700
Subject: [PATCH] babel: improve perf.

---
 .babelrc | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/.babelrc b/.babelrc
index 986649619..e8facd85b 100644
--- a/.babelrc
+++ b/.babelrc
@@ -1,7 +1,15 @@
 {
-  "presets": ["es2017", "es2016", "es2015"],
+  "presets": [
+    ["es2017"],
+    ["es2016"],
+    ["es2015", {
+      "loose": true,
+      "spec": false
+    }]
+  ],
   "plugins": [
     ["transform-runtime", {
+      "helpers": true,
       "polyfill": true,
       "regenerator": true
     }]