We do more. The we just don't have enough user base to get good caching. probably you are the first person to do most of your searches and that slows us down, where as DDG and Google likely have seen a query like yours before.

I like to think that the summaries vs. the snippets make up for some of that, we get you more info in one go.

We also lose a bit because we return about 50 results at a go instead of 10.