you can adjust cycles manually with ctrl-f11 ctrl-f12 while dosbox is running

aeronix wrote:

@idspispopd
Setting the cycles helped. Are the game codes freely available? As I suspected earlier there was some settings which needed to be adjusted.
]

Look again, I posted a link to the source code., which I got from the Wikipedia article I also linked.
And of course it should be included with MS-DOS 5.0 along with the QBasic interpreter you'll need.