It seems to take forever for my machine to go through 'Precalculating Indirect Light'. Is there a way I can cut this time way down?

I've cut the dimension size of my test renders way down in size. I've adjusted the render settings, is there anything else I can do? Any help would be welcome.

Below are my render settings. I'm just trying to get a basic idea of how the lighting and characters look so am not after the finest details in my test renders.