Animation settings question when using Primary BF and Secondary LC

In actual fact, even when I look at another scene where only the camera moves, I am seeing flickering in the renders from frame to frame. I guess this is to be expected as a new GI solution is calculated for every frame, so therefore some flickering is inevitable. What is the best way to render a scene where I want to see all the detail/subtlety that BF can give you, but is also good for static scenes and scenes with changing light or moving objects?