It might be. I do know at some point when your casting speed gets high, you can't just spam a spell and expect the shots to truly be automatic. Sometimes there's that delay you've mentioned when casting isn't "timed" right, but it's rare to let that happen. The general lag I'm talking about is more like every action taken in-game is delayed at least 0.25 seconds or noticeably more. Others have said their delay is anywhere from 2-3 seconds. I'm in the US, but I've always played on the European proxy which gave me the least lag, and was pretty much flawless. Since it went down two days ago, it, and all the other proxies, are pretty bad. The Euro proxy now is actually worse than the US one for me. My casting speed is at 406 at the moment, so I think it's because of the proxy problem. Let's hope it gets fixed soon!