Flash or Alternitive Prog for game?

I soon plan to be launching the creation of an absolutly incredible game. Everything is planned out, mapped, diagrammed, correctly labeled, and in order, But I don’t know if Flash is going to meet my demmands. I’ve seen Flash get skippy on some mild games (on low res.)

The future game HAS GOT to be in birds-eye view (slightly diagonal downward.) this means that for every action for every charecter and enemy has to have at least 4 angles. It wont be too hard to animate since I’ll be using Maya and export it into Flash from multiple sides, but that’s a hell of alot of loading for Flash. Should I look into a different program, or am I just gonna have to make flash work with me on this one.