LÖVE

I'm wanting to optimise my game by having a smaller version of a large image used instead when the large image is scaled down ie. when an image is scaled down past 0.5 it is replaced by a smaller version of the image. But I found out some engines do this mip mapping http://en.wikipedia.org/wiki/Mipmap which is what I was intending to do but done automatically by the engine. So, does Love do mipmapping?

No, it doesn't. It will simply scale the image you ask to draw.

You can do a feature request, it seems it is easy to implement.

I suppose it will only benefit the game if it's added. I was going to have fun making my own algorithum to do it, but it's less fun when I know the code will become obsolete