You could say it's underperforming and thus making your performance suffer. If she values feed back you could go into further details why it's subpar and make a suggestion that would drive performance. Bosses like to hear metric improvements. I just took my old k70 to work and I'm using that until the fucker dies then I'll probably buy my own keychron work keyboard. Seeing how she got you a some what expensive keyboard at least they provide decent stuff. My company provides doggshit 5 dollar membrane keyboards and I'd get a second hand old Microsoft ergo keb if I asked so I just brought my own.