Normal
Unfortunately firms have very different application processes and very different response times so it is hard to generalize. In some cases I got a reply within 10 days of my application/VI, whereas in other cases it took multiple months. For Slaughter and May, for instance, I had to wait around two months to find out I passed the application stage, but I ended up receiving a VS offer. As such, I do not think you can or should read much into a longer response time. However, if I were to try to estimate an average response time based on my experience, I think it would be between 4-6 weeks for the application stage and 3-4 weeks for the VI stage.