Matoronumber1: I've just bought Moonstone and despite never playing it before I can tell that the game is running way to fast. I'm unfamiliar with using DOSbox in Windows 10 but I assume it's an issue with that though I have no idea so any help or pointers would be appreciated!

I have happened upon thine solution! I just needed to change the gpu clocking speed in dosbox by holding the control and function keys on my keyboard and then pressing F11 to slow it and F12 to speed it up until the speed was appropriate. So if anyone has the same issue in Moonstone that I did hopefully this helps!