Hi everyone, I have A4Tech X7 and want to buy a new mouse. I use my PC for work purposes(coding, writing documents etc.) and gaming(usually FPS games). As you know, Razer Mamba has 1ms response time whereas Performance MX has 8ms. I think the difference between 1ms and 8ms response times cannot be differentiated by human eyes but I'm not sure about it, anyone tested it? In addition, I don't care DPI because I use my mouse in low sensitivity. Another thing that confuses my mind is that everyone on the internet states that Performance MX is not a gaming mouse so why is it not? I mean is it only because of DPI and response time issues? I feel very comfortable with Performance MX but I have some doubts about it's gaming performance. Can you enlighten me up please??