Slows when large amount of data

[SenjaliyaRita]

I have tried with following options but still performance is low with 3000 to 4000 rows including child nodes attached screenshot error occurs
$('.tree').treegrid({
initialState: 'collapsed', gridview: true, loadonce: false,
rownumbers: false,
autoRowHeight: false,
nowrap: true,
frozenColumns: null,
fit: true });

[Domochip]

please refer to #11