Annoying delay

[Globox97]

Hello everyone! I used to play RS2014RE on pc using an audio interface and it worked wonderfully, really. But i couldn't stream the game because that setup required audio exclusivity on which led to have audio undetected for OBS. So i bought a real tone cable, plugged it in and here's the problem. There is a small but still noticeable and really annoying delay from the moment i strum and the moment i hear the sound from the game. I've tryed a little bit messing with the LatencyBuffer and MaxOutputBufferSize on the .ini file but it seems to produce no results. Anyone that can help me find a solution? I really love playing guitar and it's really annoying not being able to do it the way i'd like