Cs go keyboard problem!

Hello recently i started getting problems with my keyboard, while playing cs go when i run or strafe the key sometimes stops for a split second, so i thought it was the keyboards fault so i bought a new one, and still the samething, after that i searched on google and found i should remove -high from my launch options so i did that and still the samething, my PC is good enough i play cs go on 200 and more fps most of the time.

Help plz!

Cs go keyboard problem!