We have 2 pages that are the same, aside from the grids they display.  We are experiencing a problem whereby one page renders MUCH faster than the other.  Both pages are only about 470k in size.  The grids on each page have the same number of columns.

The page that renders the fastest (in approx .4 sec) contains multiple grids.

The slower page (renders in approx 6 seconds, but have seen it take up to 11 seconds) contains 1 grid and has more rows than the grids on the faster page.

The time it takes to obtain the data used in the grids on both pages is the same.

Does anyone know of any reason as to why the page with 1 grid renders so much slower than the other one?  Is there anything we should try in order to increase the render speed?

We are using an old version of the grid - Infragistics 2005 volume 1.

Many thanks...