How to optimize my android application in real quick?

[Android Central Question]

I have developed an android application and I am unable to optimize my app! Feeling like I did nothing but I spent number of hours developing that app and now I see, no downloads.
I want to optimize my app in real quick and I need your help to guide me for best result giving methods.

Thanks.

 

[Rukbat]

First we have to know what the app does. If it's one of 100 apps doing the same thing, you won't get many downloads. If it's a n app that does something that no one needs, you won't get many downloads.

Also, exactly what do you mean by "optimize"? Making the code run better (which is what the word is normally used to mean)? Or making it more likely to be downloaded?