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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - Calc become very slow when using named ranges"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=130949">130949</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Calc become very slow when using named ranges
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>LibreOffice
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>6.3.5.2 release
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Mac OS X (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>UNCONFIRMED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Calc
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>libreoffice-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>koledennix@gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Description:
When i set named range and use it into calculation, every interaction with that
sheet become very slow (scrolling, opening sheet)

Steps to Reproduce:
1.Make new spreadsheet
2.Put some number like 9,5 into cell a1
3.Set name for this cell like "some_named_cell"
4.Add sheet to that spreadsheet
5. Set some number like 100 into a1
6. Set formula =a1*some_named_cell into B1
7. Try to scroll page and open system monitor to view than libreoffice takes
100% cpu while interacting with 

Actual Results:
Lags and slowdowns each time i open sheet with formula that includes named
range

Expected Results:
Smooth and fast working (scrolling, sheet switching)


Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
Версия: 6.4.0.3
ID сборки: b0a288ab3d2d4774cb44b62f04d5d28733ac6df8
Потоков ЦП: 4; ОС: Mac OS X 10.13.6; Отрисовка ИП: по умолчанию; VCL: osx; 
Локаль: ru-RU (ru_RU.UTF-8); Язык интерфейса: ru-RU
Calc: threaded</pre>
        </div>
      </p>


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