As the title says. On slow machines like laptops the standard AA is too demanding but without AA the game does not look so good. FXAA is a good option for that case.

FXAA can be enabled for any game in the control panel for the graphics card.

i would prefer SMAA as it's way superior to FXAA and opensourced http://www.iryoku.com/smaa/

Thank you a lot for your feedback. We are looking into this.

Yes, SMAA is better, but I think unity has build in FXAA and it is probably a lot easier to get it implemented. Also in this game, the problems of FXAA might not be that visible. But sure, if they get SMAA, that would be great.