I believe mike meant defer front panel updates, which does affect the entire pane, but unless your doing something slow (not counting property nodes which will be much faster) while deferring it shouldn't make much of a difference.
And If your just highlighting rows, you may want to consider using a multicolumn listbox (right click on the listbox indicator on the front panel and enable selection mode\highlight entire row), then just put the strings into the items names. Then just set the listbox to the row you want to highlight. So you wont even need to use any property nodes to change the highlighted row.
Matt W