as i was saying, N9 has only that much performance, it's weaker then Nexus S, and even Nexus S was having some problem with latest android version, and further, I did mention it's a very early version of software, so do not expect it to be totally lag free. As I said, the spec are too different so do expect it to even perform like a galaxy S II, let alone S IV.
e-yes is doing this for free, on his own free time that he can play games, go out hang out with friends, or even do something else like coding another app that could earn him real money, instead, he chosen to do this for his time. So previous comment suggest you to donate if you feel like it.
I explained how you can't expect rock solid performance, as i explain, it's a Alpha release, here's software release timeline:
alpha -> beta -> release candidate -> official/final/complete
if you see properly now, nitdroid is alpha, means something works, some doesn't and some not working very well, and lastly, what i did there was a suggestion, not pointing a gun to your head and ask you to buy a new device. My previous comment was never meant to be harsh, just wanted to explain to u how early the software version it is, and how the developer works, and you are just being so arrogant to think people owe you the answer and everyone that post in this thread must be helping you otherwise they are fool. I'm done here, up to you what you want to say, end of the day, you just need to understand this is early version of a software, no where near completion, and there's only that much performance that N9 can give you