Speaking of graphics: it’s also possible to play the game in SVGA software mode if you start it with the “-hires” argument.
It’s too choppy for me in Dosbox, so I’ll just play the chunky low res version. But if you’ve got fast hardware, it might be worth a look. It’s really nice and crisp!
You can also press + and – to increase/decrease the game window size, which can improve the framerate a bit.