diff --git a/doc/fugitive.txt b/doc/fugitive.txt
index 8979521..6649efe 100644
--- a/doc/fugitive.txt
+++ b/doc/fugitive.txt
@@ -100,8 +100,9 @@ that are part of Git repositories).
                         |quickfix| list.  Jumps to the first commit unless [!]
                         is given.
 
-                        The quickfix list can be slow and awkward for many use
-                        cases.  Consider using |:Git| log instead.
+                        The quickfix list can be awkward for many use cases
+                        and exhibits extremely poor performance with larger
+                        data sets.  Consider using |:Git| log instead.
 
 :{range}Gclog[!] [args] Use git-log -L to load previous revisions of the given
                         range of the current file into the |quickfix| list.