diff --git a/README.md b/README.md
index 58de459..3e020b6 100644
--- a/README.md
+++ b/README.md
@@ -69,7 +69,8 @@ found anything amiss: http://akkartik.name/contact
 * No support yet for Unicode graphemes spanning multiple codepoints.
 
 * Undo/redo may be sluggish in large files. Large files may grow sluggish in
-  other ways.
+  other ways. lines.love works well in all circumstances with files under
+  50KB.
 
 * If you kill the process, say by force-quitting because things things get
   sluggish, you can lose data.