HELP MEEEEE

Okok, getting sick of it..

Ive been having "pblagz" for ages now. And now it just got worse. When i fire, alot of times, my gun doesnt do anything. Its like : *3bullets**long pause**3bullets*.

I have no idea if this is cuz of pb, but its really unplayable. Btw, my ping is very good and my fps is 85 stable.

if any1 has an idea how to fix this or whats causing this, plz enlighten me :'(