Micro stutters (I think)

Everytime I'm playing I get a tiny lag spikes. My pc is fairly good so it shouldn't be a hardware thing. When playing it feels normal until sum random happens and just goes to like 10 fps. Not as in it shows that but it randomly just stutters and it makes me lose a bunch of duels because the enemy is alr PAST MY CROSSHAIR when I'm aiming. I've updated my drives n shi but ts is NOT working!!