It does not have casing. You might have bought bad casing, too, though.|
The network implementation is better. And not just on paper.
The CPU is dual-core, but roughly the same speed otherwise. As for RAM, I can't tell.
So, if your question isn't just rhetorical (and I have my doubts there): It's use is probably basic network bound server stuff. Seems to agree with most of what users report here in this forum. Well, and there are those running Android on it and/or make it a media player. Arguably, you can get devices that are better fit for that task. In any case, the price point is a factor, too.
As for tuning - read about fex files. But really, don't bother. Yes, you might get 10% more out of it. But since you don't even talk about a specific use case, I'd call "premature optimization" here.