diff --git a/Performance.md b/Performance.md
index 70210e2..91330e3 100644
--- a/Performance.md
+++ b/Performance.md
@@ -68,7 +68,7 @@ $ time ls -l /usr/bin
 784inputs+0outputs (0major+303minor)pagefaults 0swaps
 ```
 
-`nnn` roughly makes one-third the system calls made by `ls`.
+`nnn` roughly makes one-third the system calls made by `ls` (all readings taken at cold boot).
 
 ```
 $ time strace -c nnn -d /usr/bin | wc -l
@@ -144,8 +144,6 @@ $ time strace -c ls -l /usr/bin | wc -l
 1989
 ```
 
-**Note:** Each reading is taken at cold boot.
-
 ## C vs. other languages
 
 - Python3 vs. C gcc [benchmarks](https://benchmarksgame-team.pages.debian.net/benchmarksgame/fastest/python3-gcc.html)