After month's of research and testing...My game Super Math Man is in the Microsoft game store. I used the UWP module with GameMaker Studio 1.4 Windows 10 Store Game Page (LINK) If you don't have Windows 10...you can download the Windows 7 version (HERE) (Update): Recently updated and resubmitted the game. The game was running well on one of my Windows 10 PCs...but slow on another. I noticed the rooms that it was running slow on I had set to speed 40. In rooms it ran well on were set at speed 30. Not sure why this was an issue with Windows 10...because I never had any issues when running it on Windows 7....and in some cases Windows XP. Anyway...Having all the rooms run at the same speed (30) fixed the problem.