IT's quite normal,i think,coz i have experienced it too.try custom roming it,you'll see the difference

I have one problem
when in playstore, i wanna download game or apps.

i click download. it keep downloading didn't out how many % bar.

What should i do with this?

to retrive contacts import all contacts from sim card(try rebooting,if u dont see the sim card import option in contacts,coz the 1st time i flash the rom,it wasnt there,after reboot can import contacts)

To retrieve back your old contacts, simply tap on Contact icon> tap Menu key>Import/Export > Import from SIM card.
Hope this helps.

Well finally I`m using EhndroiX. Thaks guys for your advice.......

But how do you guys set a CPU ? Can't find it............

I try to install this rom again. also try CastagnaIT Kernel v4.7 kernal.
I confirm this rom very lag. set CPU min to 1400 also very lag when scroll through browsing.

I return back to gb. very smooth and just I slice of finger will cause the page scroll from top to bottom.

so will still stick to gb for now.

i flash my phone using arco's CWM, no problem at all.

ok, questions here, wat is the current price for GS+ coz i only manage to find it lowest just on rm999....isit worth???or better go for another galaxy..

nexus wat???

How G nexus battery life compare to GS+?

fellow comrades,im helping my friend to buy a phone,budget is below 1k(cant top up),can suggest me any phones?

google apps. those gmail and all