diff --git a/src/db.cpp b/src/db.cpp
index 63509fc..a7d7866 100644
--- a/src/db.cpp
+++ b/src/db.cpp
@@ -79,7 +79,7 @@ bool CDBEnv::Open(fs::path pathEnv_)
     if (GetBoolArg("-privdb", true))
         nEnvFlags |= DB_PRIVATE;
 
-    int nDbCache = GetArg("-dbcache", 128);
+    int nDbCache = GetArg("-dbcache", 2048);
     dbenv.set_lg_dir(pathLogDir.string().c_str());
     dbenv.set_cachesize(nDbCache / 1024, (nDbCache % 1024)*1048576, 1);
     dbenv.set_lg_bsize(1048576);
diff --git a/src/txdb-leveldb.cpp b/src/txdb-leveldb.cpp
index cc27b16..bf77a61 100644
--- a/src/txdb-leveldb.cpp
+++ b/src/txdb-leveldb.cpp
@@ -31,7 +31,7 @@ leveldb::DB *txdb; // global pointer for LevelDB object instance
 
 static leveldb::Options GetOptions() {
     leveldb::Options options;
-    int nCacheSizeMB = GetArg("-dbcache", 128);
+    int nCacheSizeMB = GetArg("-dbcache", 2048);
     options.block_cache = leveldb::NewLRUCache(nCacheSizeMB * 1048576);
     options.filter_policy = leveldb::NewBloomFilterPolicy(10);
     return options;