diff --git a/nano/node/confirming_set.cpp b/nano/node/confirming_set.cpp
index 7c24e641fe..d763f82f32 100644
--- a/nano/node/confirming_set.cpp
+++ b/nano/node/confirming_set.cpp
@@ -246,7 +246,7 @@ void nano::confirming_set::run_batch (std::unique_lock<std::mutex> & lock)
 				{
 					// Confirming this block may implicitly confirm more
 					stats.add (nano::stat::type::confirming_set, nano::stat::detail::cemented, added.size ());
-					for (auto & block : added)
+					for (auto const & block : added)
 					{
 						cemented.push_back ({ block, hash, election });
 					}
@@ -257,7 +257,7 @@ void nano::confirming_set::run_batch (std::unique_lock<std::mutex> & lock)
 					{
 						stats.inc (nano::stat::type::confirming_set, nano::stat::detail::rate_limited);
 						transaction.commit ();
-						std::this_thread::sleep_for (500ms);
+						std::this_thread::sleep_for (100ms);
 						transaction.renew ();
 						if (stopped)
 						{