Hi again, try lowering all your graphics settings to as low as possible and play the game in 800X600 windowed mode and see if things improve.
If still no change then:
You can check if your computer can actually play BF4 by visiting this link http://systemrequirementslab.com/cyri/requirements/battlefield-4/11804/?p=a
Now, while its probably not the most accurate website in the world it will at least give you some idea of what might be wrong with your computer.
I've seen people playing the game with Intel graphics (albeit on lower settings and with not the best FPS in the world) but the game is designed for more powerful dedicated graphics cards.
Let us know how you get on.