Flash export software rendering

I'm having problem with the Flash export function. Seems like in Unity Web Plugin is using Hardware Rendering, but in Flash it is using Software Rendering, making it very slow.

I recall reading somewhere Unity For Flash was converting everything on the scene to shaders, it doesn't use Fixed Pipeline at all, but I can't find that article. Since the video card doesn't support the last shaders, maybe thats causing the sofware rendering to popup.

Can anyone tell me more info about this? Is there any way to force hardware rendering in Flash?