QAbstractItemView selectAll slow
<p>I have a <code>QTableView</code> with around 10k entries. When I call <code>QAbstractItemView::selectAll</code> it takes about 5secs to complete. The performance otherwise is OK.</p>

<ol>
<li>Why is the selection so slow? </li>
<li>and is there something I can do to speed it up?</li>
</ol>