move page takes ages and swaps

[elhombresinatributos]

Scanned a 18 page document with photo quality. Missed a page on 2nd position so scanned it last. Used "page-move left" 17 times to bring it to position 2. It has taken more than 50 minutes in an 8GB RAM laptop with Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz.

It works, tough, so it's only a performance bug.

Description: Ubuntu 13.10
Release: 13.10

Package: simple-scan
Status: install ok installed
Priority: optional
Section: gnome
Installed-Size: 584
Maintainer: Ubuntu Developers <email address hidden>
Architecture: amd64
Version: 3.10.0-0ubuntu1
Depends: gnome-icon-theme, xdg-utils, dconf-gsettings-backend | gsettings-backend, libc6 (>= 2.14), libcairo2 (>= 1.6.0), libcolord1 (>= 0.1.10), libgdk-pixbuf2.0-0 (>= 2.22.0), libglib2.0-0 (>= 2.32), libgtk-3-0 (>= 3.3.16), libgudev-1.0-0 (>= 146), libsane (>= 1.0.11-3), libsqlite3-0 (>= 3.5.9), zlib1g (>= 1:1.1.4)
Description: Simple Scanning Utility
 Simple Scan is an easy-to-use application, designed to let users
 connect their scanner and quickly have the image/document in an
 appropriate format.
 .
 Simple Scan is basically a frontend for SANE - which is the same
 backend as XSANE uses. This means that all existing scanners will
 work and the interface is well tested.
Homepage: https://launchpad.net/simple-scan
Original-Maintainer: Alessio Treglia <email address hidden>

dpkg --list | grep -i sane
ii libsane:amd64 1.0.23-0ubuntu3 amd64 API library for scanners
ii libsane:i386 1.0.23-0ubuntu3 i386 API library for scanners
ii libsane-common 1.0.23-0ubuntu3 amd64 API library for scanners -- documentation and support files
ii libsane-hpaio 3.13.9-1 amd64 HP SANE backend for multi-function peripherals
ii sane-utils 1.0.23-0ubuntu3 amd64 API library for scanners -- utilities