From: Winnipeg, MB
The game engine is old and Win 10 does not work well with it unless you use switches to make it do so. See the Thread called "Slow Performance" in the stickied part at the top of the Tech section. It explains about switches (text commands) and where to put them to address issues like resolution, flickering graphics, slow scrolling, slow response to clicks, and more.
If you have difficulty after reading that thread, post again here explaining what you have tried. Screenshots will help if you can do them.
No matter how bad a situation is, you can always make it worse. - Chris Hadfield : An Astronaut's Guide To Life On Earth