That sounds like a buffer problem, not a problem within Rocksmith. Try changing the settings for your usb input, if you can. To remove the delay, you need to reduce the buffer. There's also a latency option within Rocksmith that you can try to change if you can't change the buffer on your usb input. It's a bit of a pain though because it relies on you visually timing everything to be in sync. Also make sure that your computer meets or exceeds the minimum system requirements for Rocksmith. If it doesn't, you'll never get a perfectly smooth gaming experience no matter how many of the visuals you turn off. If it only just meets the requirements, it's a good idea to close down as many apps and processes as you can before running the game. That way all of your computer's resources will be available for RS. Thanks, It's the sound of the guitar that lags. Doesn't the latency just change the backing track to the notes on the screen?? Although I could be wrong. It hasn't mattered much because my guitar sound comes out of the amp. It's only two player when I've been noticing it.