Add note about loose mode in performance docs

chartjs · Jun 5, 2020 · 57187c6 · 57187c6
1 parent fe49ef3
commit 57187c6
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diff --git a/docs/docs/general/performance.md b/docs/docs/general/performance.md
@@ -219,3 +219,8 @@ new Chart(ctx, {
     }
 });
 ```
+
+### When transpiling with Babel, cosider using `loose` mode
+
+Babel 7.9 changed the way classes are constructed. It is slow, unless used with `loose` mode.
+[More information](https://github.com/babel/babel/issues/11356#issuecomment-637072426)