Oculus : lag / jitter / stutter

Hi, i'm new with Unity and Oculus
I have a problem, found in Unity, and in the Oculus configuration Utility Demo too :
Each second, approximately, the camera, or the view, is jittering or stuttering on both eyes. It's like a lag, on the left, right, top or bottom, depending on the direction i move the head.
If i do a quick movement, less than a second, it's good. But if the movement is more than a second, i can see this lag.
I heard about the FPS, that need to be 90. But all the scenes that i try, exemple ones, are ok. I just have this lag each seconds, like a timer tick...

My conf is :
- Unity 5.2
- Oculus runtime 0.7.0.0 beta
- Oculus DK2
- Macbook pro core i7 2.23 Ghz (4 physicals cores, 4 virtuals cores), nvidia GT 650M, 16 Go Ram

If someone can help me...

Thank you

 

I recommend you read up on the oculus site regarding minimum spec. Your graphics card is below the minimum spec. Additionally you may be running into other issues because you're not on a Windows box.

 

Hi,

Thank you for your response.
I will try to find an other computer and test it.

Saudad

 

These stutters will happen any time your frame rate dips below 75.