diff --git a/src/riak_kv_wterl_backend.erl b/src/riak_kv_wterl_backend.erl
index 5898d82..cbdeccc 100644
--- a/src/riak_kv_wterl_backend.erl
+++ b/src/riak_kv_wterl_backend.erl
@@ -121,7 +121,8 @@ start(Partition, Config) ->
                     "lsm" ->
                         [{internal_page_max, "128K"},
                          {leaf_page_max, "128K"},
-                         {lsm_chunk_size, "25MB"},
+                         {lsm_chunk_size, "100MB"},
+                         {lsm_merge_threads, "2"},
                          {prefix_compression, false},
                          {lsm_bloom_newest, true},
                          {lsm_bloom_oldest, true} ,