I had the free version loaded on my server and it was very fast.
I just downloaded the evaluation copy and just changed the lines for the source code like this:
<!--ParamQuery Grid files-->
<link rel="stylesheet" href="js/paramquery-pro/pqgrid.min.css" />
<script type="text/javascript" src="js/paramquery-pro/pqgrid.min.js" ></script>
But now it is much slower than it was on the free version. I am using a grid that I load from Mysql using ajax but then I am sorting and filtering in the local mode and it is slow in those operations.
steve