diff --git a/lib/data/model/sftp/worker.dart b/lib/data/model/sftp/worker.dart
index d22692bc..4fc01f3c 100644
--- a/lib/data/model/sftp/worker.dart
+++ b/lib/data/model/sftp/worker.dart
@@ -91,7 +91,7 @@ Future<void> _download(
       return;
     }
     // Read 10m each time
-    const defaultChunkSize = 1024 * 1024;
+    const defaultChunkSize = 1024 * 1024 * 10;
     final chunkSize = size > defaultChunkSize ? defaultChunkSize : size;
     mainSendPort.send(size);
     mainSendPort.send(SftpWorkerStatus.loading);