diff --git a/examples/config/historical/runtime.properties b/examples/config/historical/runtime.properties
index 2de94f5c5bf..e1ff81f0548 100644
--- a/examples/config/historical/runtime.properties
+++ b/examples/config/historical/runtime.properties
@@ -12,7 +12,9 @@ druid.s3.accessKey=AKIAIMKECRUYKDQGR6YQ
 
 druid.server.maxSize=100000000
 
+# Change these to make Druid faster
 druid.processing.buffer.sizeBytes=10000000
+druid.processing.numThreads=1
 
 druid.segmentCache.infoPath=/tmp/druid/segmentInfoCache
 druid.segmentCache.locations=[{"path": "/tmp/druid/indexCache", "maxSize"\: 100000000}]
\ No newline at end of file