So let's go to what's important: I just updated my LG Optimus L7 P700 from unofficial CM 10.2 (Jelly Bean) to this unofficial CM 11 (Kit Kat) version developed by cr3pt: http://forum.xda-developers.com/show....php?t=2521239.
I did a clean procedure, gone to recovery and wiped cache/dalvik, flashed CM and its proper GAPPS and wiped cache once again, then reboot.
The problems I have for now: lag/slowness on home screen, app/notification drawer scrolling, and also Cell Broadcast force closing all the time. Is it normal? Could you guys help me to solve these issues? Please answer!