diff --git a/Performance-Tips.md b/Performance-Tips.md
index 965e8bc..e705328 100644
--- a/Performance-Tips.md
+++ b/Performance-Tips.md
@@ -7,8 +7,7 @@ One drawing function like `DrawImage` or `Fill` is usually treated as one (inter
 * All the functions are `DrawImage` or `DrawTriangles`
 * All the render targets are same (`A` in `A.DrawImage(B, op)`)
 * Either all ColorM element values are same or all the ColorM have only diagonal ('scale') elements
-  * (*ColorM).Scale modifies only diagonal elements. Other ColorM functions might modify the other elements.
-* All the composite modes are same
+  * If only (*ColorM).Scale is applied to a ColorM, the ColorM has only diagonal elements. The other ColorM functions might modify the other elements.* All the composite modes are same
 * All the filter values are same
 * All the address values are same (only for `DrawTriangles`)