For example i played 5* maps for a long time and my acc didnt improve. I was dissapointed in myself thinking i have skill issue. At some point i stopped caring about acc at all. I bought hyperx like days ago and now those bad acc scores like c ranks are becoming a ranks after i fix them. I cant believe i really wasted my time improving instead of buying a new keyboard from start. I feel so stupid. I had like really shitty keyboard so yeah hardware issues can make you way worse at game