1. Select Software Rendering in Kingdoms/ChooseRenderer
2. Have DxWnd opened with Teaks/ Prevent Minimize Window, so software render doesn't crash your game.
3. Launch tak enhanced with Patches/no cd on...to play the campaign
4. Type in +showframerate in game, and watch how FPS are higher playing tak in modal window with software rendering + videos.
See this article on how to set up DxWnd for modal window with better performance:
https://kingdoms.catsboard.com/t1522-how-to-use-dxwnd