diff --git a/drivers/quark_share/util.go b/drivers/quark_share/util.go
index e7eda141c88..c68e5ecd3b7 100644
--- a/drivers/quark_share/util.go
+++ b/drivers/quark_share/util.go
@@ -223,8 +223,8 @@ func (d *QuarkShare) link(file model.Obj, fid string) (*model.Link, error) {
 			"Referer":    []string{d.conf.referer},
 			"User-Agent": []string{ua},
 		},
-		Concurrency: 2,
-		PartSize:    10 * utils.MB,
+		//Concurrency: 2,
+		//PartSize:    10 * utils.MB,
 	}, nil
 }