For a text-based business simulator, i'd make the text far easier to read. I'm finding it to be a little to fast, with a lot of eye strain. There's a couple of techniques, including making sure that your text isn't completely black.

I'd look a little more into some of the design strategies, including smoother scrolling for text, better typography design, colors that are easier to read and more focus on the content itself.

Especially if you expect someone to read 20 minutes for an article. Just take a bit of a refresher on techniques for web readability!