diff --git a/content/docs/options/flatten-control-flow.md b/content/docs/options/flatten-control-flow.md
index bb63d5d..b17e3f6 100644
--- a/content/docs/options/flatten-control-flow.md
+++ b/content/docs/options/flatten-control-flow.md
@@ -18,5 +18,6 @@ The control flow flattener supports the following branching syntaxes:
 
 The following child options are available:
 
-- `Wrap CFF blocks`: This will move some CFF blocks into their own closure in a lookup table.
+- `Expression Decomposition`: Breaks apart expressions into CFF blocks, can kill performance.
+- `Wrap CFF blocks`: This will move some CFF blocks into their own closure in a lookup table. Can speed up larger flattening targets.
 - `Hoist locals`: Will move local storage into a lookup table for CFF blocks. Useful to cut down on the number of used locals.
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