Advice for N910F lightweight and battery friendly ROM

Hello,

I am asking for your contribution in order to find a ROM that provides good performance while giving good battery life.
I am using Emotroid v8 but I find that the ROM implements lots of stuff I don't need (customisation, themes...)
I want a debloated ROM, Touchwiz or stock (I would prefer stock though)
What would you suggest?
Thanks for your answers

Looking for a lightweight stock based rom.

Hai. I'm back using my good old Xperia S, but the stock rom is pretty meh, especially coming from the glorious Z3. I'm looking for a rom to make the phone a bit more modern and smoother. What I'm looking for is a debloated stock rom with stock sony stuff updated to at least Xperia Z apps, especially the launcher and the toggles. I don't care about overclocking or barely working honami camera or any of that stuff, I want fully working stock based stuff.

I tried a bunch of roms like Nature or Experienz but they're awfully bloated and full of malfunctioning features.

Alternatively can you recommend a fully working fully stable version of Cyanogen or an AOSP based rom with no bugs and no missing features (I can sacrifice the FM radio)? Last time I tried Cyanogen for this device I was tearing my hair out because of day runing bugs (such as the phone hanging mid calls).

Please suggest some 'simple and lightweight' rom for Galaxy Young S6312 Duos.

I am using its stock rom 4.1.2, rooted and debloated, but I am looking for some 'simple and lightweight' rom. The stock rom is very heavy.

I know all the procedures of installing custom roms. But i am confused about which rom to install. Please help.