Website with fast engine for modelling complex patterns

I have built a Python application that does some smart maths and can generate thousands of patterns for manufacturing. Then using linear programming, the application selects the best patterns that minimize waste. Now I want to convert this to a web application but I want the model to solve much quicker so I want to use a more suitable programming language. I was thinking of using C++ Server pages which I didn't even know existed until about ten minutes ago. Is this a good idea or should I be using something else like Java? If C++ is the way to go, what is the best way to get started to develop the application? I have built a few C# web applications using Visual Studio but haven't built any C++ applications. I have looked at using Wt which looks promising.