--- a/README_VIM9.md
+++ b/README_VIM9.md
@@ -45,14 +45,16 @@ full code is below):
 | Vim old | 5.018541 |
 | Python  | 0.369598 |
 | Lua     | 0.078817 |
+| LuaJit  | 0.004245 |
 | Vim new | 0.073595 |
 
 That looks very promising!  It's just one example, but it shows how much
 we can gain, and also that Vim script can be faster than builtin
 interfaces.
 
-In practice the script would not do something useless as counting but change
-the text.  For example, reindent all the lines:
+LuaJit is much faster at Lua-only instructions.  In practice the script would
+not do something useless as counting but change the text.  For example,
+reindent all the lines:
 
 ``` vim
   let totallen = 0
@@ -64,13 +66,17 @@ the text.  For example, reindent all the
 
 | how     | time in sec |
 | --------| -------- |
-| Vim old | 0.853752 |
-| Python  | 0.304584 |
-| Lua     | 0.286573 |
-| Vim new | 0.190276 |
+| Vim old | 0.578598 |
+| Python  | 0.152040 |
+| Lua     | 0.164917 |
+| LuaJit  | 0.128400 |
+| Vim new | 0.079692 |
+
+[These times were measured on a different system by Dominique Pelle]
 
 The differences are smaller, but Vim 9 script is clearly the fastest.
-Using LuaJIT gives 0.25, only a little bit faster than plain Lua.
+Using LuaJIT is only a little bit faster than plain Lua here, clearly the call
+back to the Vim code is costly.
 
 How does Vim9 script work?  The function is first compiled into a sequence of
 instructions.  Each instruction has one or two parameters and a stack is