I would like you to show me a peice of code that would not increase server load.
I have designed a Control Panel for my site, it uses modules to make it easy to add new sections to, I know it isn't the best solution to run an efficient control panel, it works fine for me, but i wouldn't make a public release based on it while it uses modules.
Yes you could probabily make an efficient one, but can you tell me that you are honestly planning a ubb which supports such a thing with the current flatfile format?