HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

I have a problem: I installed your mod on top of **Heroes WOG 3.5.8f**, and the performance is terrible (5-8 FPS). When I change the resolution from 800x600 to any other resolution, including my monitor's resolution of 1680x1050, the game lags. What's the issue? My computer should be able to run 20 instances of Heroes simultaneously without any problems.