- Add multi_thread_streams (default 4) and multi_thread_cutoff (default "50M") fields to ReadConfig, wired into rclone mount args - Expose both fields in Web UI config editor under Read Tuning section - Add Samba performance options: TCP_NODELAY, large readwrite, max xmit - Update config.toml.default with new fields and sftp_connections guidance Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>