Gaming become laggy and frame rate is unacceptable

Dec 11, 2018
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My laptop specs : Acer predator G3-571
Intel(R) Core(TM) i7-7700HQ CPU @ 2.80 GHz GTX 1060
16Gb ram
64-bit
I was playing shadow of tomb raider and the witcher 3 fine the week before. After i came home from a trip, when I turn on the games its FPS is actually driving me to crazy. I have tried many ways including resetting my computer but it doesn't work. Can anyone pls help me with this problem