I have tested many Construct 2 games on S2, S3, S Advance. But If you managed your code well then you can improve the performances. As my experiences with above phones, I got averagely 35-50 frame rate without lag with following implement:
Export method : Intel XDK
If game has Physics better to use Coconjs native
Reduce the number of clone of objects that available in every frame. (try to limit maximum 10)
Reduce the number of physics objects
reduce the number of conditions checking in every tick
use "dt*60" values in everywhere ,
Destroy objects after use.
set clear background property to no,