diff --git a/roles/s3-mirror/files/config b/roles/s3-mirror/files/config
index 812ac13053..3a0af64724 100644
--- a/roles/s3-mirror/files/config
+++ b/roles/s3-mirror/files/config
@@ -1,3 +1,7 @@
 [default]
 region = us-west-2
 output = text
+s3 =
+    max_concurrent_requests = 50
+    multipart_threshold = 64MB
+    multipart_chunksize = 16MB