f how much faster

Author: TheBlueMatt

CHANGELOG.md

@@ -158,7 +158,8 @@
    available in previous versions on downgrade (#3192).
 
 ## Performance Improvements
- * Route-finding is XXX how much faster (#3103, #3104, #2803, #3188)
+ * Route-finding is 11-23% faster (#3103, #3104, #2803, #3188, on an Intel Xeon
+   Silver 4116 (Skylake)).
  * `lightning-block-sync` now much better avoids lock contention during parallel
    requests for block data, speeding up gossip sync from multiple peers (#3197).