vpr: Clarify breadth-first router deprecation message

vpr/src/route/route_breadth_first.cpp

diff --git a/vpr/src/route/route_breadth_first.cpp b/vpr/src/route/route_breadth_first.cpp
index 3ff2eca..cd0809a 100644
--- a/vpr/src/route/route_breadth_first.cpp
+++ b/vpr/src/route/route_breadth_first.cpp
@@ -42,8 +42,9 @@
         "*        is inferrior and may be removed in a future release.        *\n"
         "*                                                                    *\n"
         "*     Use the 'Timing-Driven' router instead, which requires much    *\n"
-        "*         less run-time and produces higher quality results          *\n"
-        "*         (even with it no timing information is available).         *\n"
+        "*      less run-time (> 300x faster) and produces higher quality     *\n"
+        "*          results (less wirelength, lower delay), even when         *\n"
+        "*           architecture timing information is unavailable.          *\n"
         "*                                                                    *\n"
         "*                         !!! WARNING !!!                            *\n"
         "**********************************************************************\n"