So I've been researching how to implement an isometric tilemap but specifically, I've found little information on the limits of each programming tree you can take with windows 8 development.

I have written a game in javascript/HTML before and noticed performance issues with many objects on the screen being updated each frame, but I have little experience in c++/DX or c#/XAML, although I have some experience in java and c which would help with the learning curve.

My question is this: If I wanted to make a basic diablo styled isometric 2d game, would javascript be powerful enough to draw ~100 tiles each frame plus any ingame objects at 60FPS? I'm also wondering the same for c#/XAML. I assume it's safe to assume that c++/DX would handle it easily as long as there are no sloppy algorithms.

Cheers everyone.

Soon (Win 8.1, IE11) you can also use WebGL in your JS/HTML-Apps, so it should be no problem at all.

Well in the future I suspect the c++ -> Javascript and such toolchains would be even better. With asm.js I think they even got within about 50% of the original c++ performance on something, and certainly seems to have a lot more pace than dealing with normal Javascript right now, since it bans all the hard to optimise bits (that apparently, since I think only C++ exceptions cause a bit of a problem, are not strictly needed to be fully functional, but you would not want to hand write that subset).