Help ! FPS problem

i have an I3 dell , 4 gb ram, cpu 2,4GHz , intel HD Graphics 2gb and i was playing with the lowest config it's has been 2 weeks with 80-100 fps , and it was not bad now that i reinstalled the game , my fps dropped to 06-10 , i can't see anything at all , only pictures .... is it about this latest update ? is it about my laptop ? please need help :'(
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