performance of hiding rows

I am using setRowIndices to show and hide rows based upon filtering and search functions. When there is a high volume of data, this is very slow.
I found that hiding columns is much , much faster changing the stylesheet dynamically vs. using the setColumnIndices. I'm looking for some alternative way to hide rows faster. I don't think i can use stylesheets because of the number of entries that would be required.

BUMP

You can try adding dynamic css class to the row template -

.aw-visible-false {display: none}

row.setClass("visible", function(){return this.getRowProperty("visible")})

grid.defineRowProperty("visible", function(){...});

You still have to refresh either the full grid or at least the rows which change 'visibility'.