Even faster to chop is getting either a food processor or electric chopper. I have a mini 3 cup chopper that cost $12 at the time and has been one of the best buys next to my blender. I chop onions, garlic, nuts, carrots, kale, etc. in under a minute. I use to make raw ice cream in it too.
Using a Vitamix or
Blendtec is the most efficient way of incorporating raw foods into your diet besides just eating them straight. They can also chop too, but it's easier to have a separate appliance if you chop often.