I wish I could tell you if that worked, but I actually caved and bought the GOG version after weeks of fooling around with .cfg files. I originally tried messing with clock speeds to no avail, though I never tried the specifc speed you provided. I read the GOG version had a recent-ish update to its code and was still very cheap. With exception of in-game resolutions, the only radical difference from the steam .cfg file I noticed was that it allowed for another scaler option called "supereagle." As I said before I have next to no experience with DOSbox, so I don't know if that is a typical option or some custom script the GOG team made.

Anyway, using that scaler the cutscenes played flawlessly, and the gameplay was totally unaffected from what I could tell. Perhaps the steam .cfg file also allows you to type in "supereagle" as a value for the scaler, but I couldn't confirm that as I no longer have the steam version installed. Maybe someone could give that a shot? If it works you shouldn't have to worry about editing any other settings. GOG also provided a nice interface for changing video options as well, without having to edit .cfg files directly. Maybe Steam could update this game and conjure some similar magic sometime?

Can u get gog galaxy on windows xp?

No, GOG Galaxy won't run on XP. You technically don't need it to download from GOG... you can download files directly. However, you should definitely NOT be running XP on the internet for any reason.

If this is the computer you are trying to play this game on and it has old components, that might be your problem too.