diff --git a/modules/hm/rclone-mount.nix b/modules/hm/rclone-mount.nix
index 981e50b..762d1ea 100644
--- a/modules/hm/rclone-mount.nix
+++ b/modules/hm/rclone-mount.nix
@@ -18,7 +18,7 @@ in
         Service = {
           Type = "simple";
           ExecStartPre = "${pkgs.coreutils}/bin/mkdir -p ${path}";
-          ExecStart = "${pkgs.rclone}/bin/rclone --config ${rclone_config} mount ${name}:/ ${path} -v --vfs-cache-mode=writes";
+          ExecStart = "${pkgs.rclone}/bin/rclone --config ${rclone_config} mount ${name}:/ ${path} -v --vfs-cache-mode=writes --s3-upload-concurrency 32 --s3-chunk-size 128000";
           Restart = "on-failure";
           RestartSec = "30s";
         };