INPUT LAG OF DOOM ON PC

Please i beg of you FIX the input lag issue on pc like I genuinely cannot play the game i feel like inflicting harm on me everytime i play im addicted to the game yet i cant play a smooth and refreshing experience im using a ds4 controller connect to my usb 3.0 via it s connection cable my cpu is an i7 9700 with an rx 5700xt and 32gbs of ram no reason for me to have any discomfort playing this game and THE CRASHES please stop them i know you mostly care about the console versions but pc has a lot of players so please deal w those issues seriously 

Thank you.