S4, lag?

I thought it has a QUAD CORE 1.9GHZ CPU?! By right it should have a theoretical performance of 7.6 ghz then? Why does it still lag?
Surprisingly not many realized now the market trend is that bigger screens are innovation. When Samsung releases a flagship Galaxy S phone every year with increasingly larger screens its deemed as an innovation, throw in a few features like smart stay and smart scroll (Which works, like once in a while) and its a blockbuster phone! Galaxy note: Bigger and bigger screens, some nifty stylus tricks (Only a rare few actually find real use of it, to be honest) - iPhone DESTROYER! Oh don't forget adding more cores and turning up clockspeed is extremely innovative and is the best way to improve performance.
Apple- Fingerprint scanner which actually works extremely fast? (Please don't mention the Atrix its not even close to being a fingerprint scanner if compared side by side)
A7 Chip which is still dual core and is clocked lower than the competition and still bests them all?
MEH. Apple sux. Apple is doomed.
/s


