[Q] Poor battery life? topic

Hi, I bought my moto g 2014 2 days ago, I bought it because I briefly owned the 2013 version and I had great battery performance on that device.
Yesterday, I got only around 2.5 hours of on screen time, I installed titan rom and today I got 3.5 hours so it did improve, but in the battery thread most people are getting 5 hours of on screen time so I know it can perform better.
Do you think is because the battery is still calibrating?
I have good signal most of the time so I don't think that's the cause.