Other than the bug that makes it so you can't start (wimm.dll or something), it seems as though 10 fixed the low FPS under the standard 1.2 beta patch. I'm getting 120 FPS with vsync when under 8.1 I struggled to get 30 without the alpha patch. I assume this is a good thing, maybe MS finally fixed that bug with directdraw performance? Or did GOG secretly upgrade their build to include the alpha patch?