title: jstree performance issues
body: <p>I am using a <code>jsTree</code> with around 1500 nodes, nested to a max of 4 levels (most are only 1 level deep), and I'm getting Internet Explorer's <em>"this script is running slowly"</em> error.  I began with just a straight <code>html_data</code> <code>&lt;li&gt;</code> structure, generated by ASP.NET.  The tree wouldn't finish loading at all. Then I tried <code>xml_data</code> and <code>json_data</code>, which was a little better but eventually errored out.  My last-stitch effort was async loading. This fixed the initial load problem, but now I get IE's error when I expand one of the larger branches.</p>
  
  <p>More details: I'm using the <code>checkbox</code> plugin, and I will also need the ability to search. Unfortunately, when searching, the user could potentially enter as little as one character so I'm looking at some large set of search results.</p>
  
  <p>Has anybody done something similar with such a large data set? Any suggestions on speeding up the jsTree? Or, am I better off exploring other options for my GUI?</p>
  
  <p>I realize I haven't posted any code, but any general techniques/gotcha's are welcome.</p>