Low fps on simple scene

Hello Guys,

Im studying 3d animation and suddently im having some trouble with fps, I cant get more than 10 fps if i set some objects with 2 subdivisions surface. Here i’ll post some images, lets see if you can help me.


At playback i just have ticked the “all 3d viewer editors”

Im using blender 2.74 (I’ve also tested the file with blender 2.73, 2.72 and 2.69, same problem)
Windows 8.1, Nvidia GTX 770, 8 GB ram