[phowson]

Not to ask a brutally stupid question, but does the application check every point to determine if it should render it or is there some way of treating it like a database and rendering only a found set of objects that are meant to be displayed at a given resolution?
If there were a way to index certain fields it might reduce the volume of what needs to be rendered significantly thereby reducing the load on the application and speeding up the rendering. Of course now that I've written it down it looks painfully like I am stating the obvious.