Oh I'm sorry I wasn't aware that you've been using a Galaxy S6 and comparing to your time with the S5...
I've been doing that since I received it (well, them, I have two S6s) and I can only tell you what I see. The S6 software is improved, but its nothing to get excited about compared to other devices today. That's unfortunate, but it's true.
The hardware is much better, absolutely. And the camera is one of the best available right now. But the software is a big and important part of a phone, and it's still not great.