diff --git a/c_src/eLfq/eLfq.cc b/c_src/eLfq/eLfq.cc
index af6ff26..a6856b3 100644
--- a/c_src/eLfq/eLfq.cc
+++ b/c_src/eLfq/eLfq.cc
@@ -4,11 +4,11 @@
 #include <vector>
 
 struct NifTraits : public moodycamel::ConcurrentQueueDefaultTraits {
-    static const size_t BLOCK_SIZE = 8;
-    static const size_t EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD = 8;
-    static const size_t EXPLICIT_INITIAL_INDEX_SIZE = 4;
-    static const size_t IMPLICIT_INITIAL_INDEX_SIZE = 4;
-    static const size_t INITIAL_IMPLCICIT_PRODUCER_HASH_SIZE = 0;
+    static const size_t BLOCK_SIZE = 16;
+    static const size_t EXPLICIT_BLOCK_EMPTY_COUNTER_THRESHOLD = 16;
+    static const size_t EXPLICIT_INITIAL_INDEX_SIZE = 8;
+    static const size_t IMPLICIT_INITIAL_INDEX_SIZE = 8;
+    static const size_t  INITIAL_IMPLICIT_PRODUCER_HASH_SIZE= 0;
     static const std::uint32_t EXPLICIT_CONSUMER_CONSUMPTION_QUOTA_BEFORE_ROTATE = 0;
 
     static inline void *malloc(std::size_t size) { return enif_alloc(size); }