diff --git a/docs/ROADMAP.md b/docs/ROADMAP.md
index d664403cf..6e1d76b89 100644
--- a/docs/ROADMAP.md
+++ b/docs/ROADMAP.md
@@ -8,15 +8,11 @@ possible participation.
 HTTP/2
 ------
 
-- test suite
-
-   Base this on existing nghttp2 server to start with to make functional
-   tests. Later on we can adopt that code or work with nghttp2 to provide ways
-   to have the http2 server respond with broken responses to make sure we deal
-   with that nicely as well.
-
-   To decide: if we need to bundle parts of the nghttp2 stuff that probably
-   won't be shipped by many distros.
+Improve performance. Measurements and tests have shown that in several cases
+doing transfers over HTTP/2 can be notably slower than the same transfer done
+over HTTP/1. Some of that difference can be attributed the inefficient window
+size handling currently in use but there are probably more to be learned and
+worked on to optimize this.
 
 HTTP cookies
 ------------