So I bought Samsung LED Smart-TV yesterday and I gotta say say it's amazing and has so sharp screen. But to my problem. The guy which sold me and told me things about this TV ( I really enjoyed him telling me all the things I needed and he really knew what he was talking. Not everyone here knows what they are selling). said that some options in the TV needs to be adjusted so I can play without getting high latency to my screen via HDMI. Someone here can help me to tell which option it is? Also screen seems to be shaking all little when I'm moving in WoW or HoN.

Merry Xmas to all and thanks for your time.