When I initially load a page that has our radgrid on it, the page loads in seconds. When I refresh the exact same page, the page load takes minutes. I'd post code, but I'm not sure it's relevant - as the code doesn't change from initial page load to page refresh. So this is a more general question, has anyone had any difficulties/experiences with radgrid rendering very slowly on page refresh vs initial load?
It turned out to be the viewstate. I disabled it for the entire page (just doing it for the grid did no good) and the page loads/refreshes quickly. There is a whole host of new issues that arises with the viewstate now disabled, but we're working through those.