That might explain the price difference

https://www.amazon.com/Rocksmith-2014-Real-Cable-playstation-3/dp/B00KJGJUNS/ref=asc_df_B00KJGJUNS/?tag=hyprod-20&linkCode=df0&hvadid=459679443988&hvpos=&hvnetw=g&hvrand=12652136142192928776&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1026952&hvtargid=pla-563731575271&psc=1

I have no problems but i would check your TVs input latency and if it has a game mode. I've hears of others having issues. There is some adjustment you can make but it won't make enough of a difference if there's too much lag. I would try watching a movie from your laptop on your TV to see if there is much offset between the audio and video