Fps problems / drops

Hello everyone , i am playing this game smite and i am having some bad fps drops that last for like a second or so ... my fps is around 120 and then it drops to 30 and goes right back up , and it creates a bad lagg on my game that makes me miss and die in lots of cases . I've noticed that my GPU memory clock as well as all 4 CPU cores are max-ed while playing this game tho i dont understand why . I have double better specs then recommended for this game , ( rec. 4GB i am running on 8GB , rec . i5 2.6ghz i have i7 Quad core on 2.5 ghz , rec. GPU gtx550 i have gtx850m ) , tryed lowering details from high to low , still dropping . My fps is fine , around 120 + but that lagg drops/spikes are annoying . Would could be the couse of that ? Could it be this maxing GPU and CPU ?

Here is SS : http://postimg.org/image/d8hvn6lmz/full/

My specs :
Processor: Intel(R) Core(TM) I7-4710HQ [email protected] 2.50 GHZ (8 CPUs) ~ 2.5GHz
Memory: 8192 MB RAM
GPU : Nvidia Geforce GTX 850m and integrated intel (R) HD graphics 4600 ( i've set in the nvidia control panel nvidia defualt GPU )
OS: Windows 8.1 PRO

Also here is a pic of my GPU usage , its pretty unstable for some reason http://postimg.org/image/g2a38gssf/full/