diff --git a/neo/IO/Data/LevelDB/WriteOptions.cs b/neo/IO/Data/LevelDB/WriteOptions.cs
index 8a74fb5340..c386b271c4 100644
--- a/neo/IO/Data/LevelDB/WriteOptions.cs
+++ b/neo/IO/Data/LevelDB/WriteOptions.cs
@@ -5,6 +5,7 @@ namespace Neo.IO.Data.LevelDB
     public class WriteOptions
     {
         public static readonly WriteOptions Default = new WriteOptions();
+        public static readonly WriteOptions DefaultSync = new WriteOptions { Sync = true };
         internal readonly IntPtr handle = Native.leveldb_writeoptions_create();
 
         public bool Sync
diff --git a/neo/NeoSystem.cs b/neo/NeoSystem.cs
index 1e157486e2..9a0359b423 100644
--- a/neo/NeoSystem.cs
+++ b/neo/NeoSystem.cs
@@ -20,7 +20,8 @@ public class NeoSystem : IDisposable
             $"task-manager-mailbox {{ mailbox-type: \"{typeof(TaskManagerMailbox).AssemblyQualifiedName}\" }}" +
             $"remote-node-mailbox {{ mailbox-type: \"{typeof(RemoteNodeMailbox).AssemblyQualifiedName}\" }}" +
             $"protocol-handler-mailbox {{ mailbox-type: \"{typeof(ProtocolHandlerMailbox).AssemblyQualifiedName}\" }}" +
-            $"consensus-service-mailbox {{ mailbox-type: \"{typeof(ConsensusServiceMailbox).AssemblyQualifiedName}\" }}");
+            $"consensus-service-mailbox {{ mailbox-type: \"{typeof(ConsensusServiceMailbox).AssemblyQualifiedName}\" }}" +
+            $"blockchain-dispatcher {{ type = PinnedDispatcher }}");
         public IActorRef Blockchain { get; }
         public IActorRef LocalNode { get; }
         internal IActorRef TaskManager { get; }
@@ -35,7 +36,7 @@ public NeoSystem(Store store)
         {
             this.store = store;
             Plugin.LoadPlugins(this);
-            this.Blockchain = ActorSystem.ActorOf(Ledger.Blockchain.Props(this, store));
+            this.Blockchain = ActorSystem.ActorOf(Ledger.Blockchain.Props(this, store).WithDispatcher("blockchain-dispatcher"));
             this.LocalNode = ActorSystem.ActorOf(Network.P2P.LocalNode.Props(this));
             this.TaskManager = ActorSystem.ActorOf(Network.P2P.TaskManager.Props(this));
             Plugin.NotifyPluginsLoadedAfterSystemConstructed();
diff --git a/neo/Persistence/LevelDB/DbSnapshot.cs b/neo/Persistence/LevelDB/DbSnapshot.cs
index b8391315b8..59e6537b5f 100644
--- a/neo/Persistence/LevelDB/DbSnapshot.cs
+++ b/neo/Persistence/LevelDB/DbSnapshot.cs
@@ -51,7 +51,7 @@ public DbSnapshot(DB db)
         public override void Commit()
         {
             base.Commit();
-            db.Write(WriteOptions.Default, batch);
+            db.Write(WriteOptions.DefaultSync, batch);
         }
 
         public override void Dispose()
diff --git a/neo/Persistence/LevelDB/LevelDBStore.cs b/neo/Persistence/LevelDB/LevelDBStore.cs
index b74034f1ca..d7759e110a 100644
--- a/neo/Persistence/LevelDB/LevelDBStore.cs
+++ b/neo/Persistence/LevelDB/LevelDBStore.cs
@@ -119,7 +119,7 @@ public override void Put(byte prefix, byte[] key, byte[] value)
 
         public override void PutSync(byte prefix, byte[] key, byte[] value)
         {
-            db.Put(new WriteOptions { Sync = true }, SliceBuilder.Begin(prefix).Add(key), value);
+            db.Put(WriteOptions.DefaultSync, SliceBuilder.Begin(prefix).Add(key), value);
         }
     }
 }