FPS drop on every game on laptop (Lenovo ideapad 510- 15ISK)

RBLXRanged

Prominent
Jul 1, 2017
1
0
510
FPS drop on every game on laptop (Lenovo ideapad 510- 15ISK)I have this laptop Lenovo ideapad 510- 15ISK, and when i run any game like FIFA 16 or some game called Deer Hunting they begin very smooth and then suddenly the game lags as hell, here is my pc specs:
8GB RAM, Nvidia GTX 940MX, intel core i7-6500U, any reply or help from you will be very appreciated (Sorry for bad english)
 
This is happening to me too on the same laptop.I don't know how to fix it. My temps go max 63 C then the pc it self underclocks the gpu so the temps won't go any further. Is this becouse of a bad cooling solution on the laptop or the softwere it self I don't know but that's the reason the fps drops accour ,but how to fix that I would like to find out for my self too.