Cons list on rtings site says:
Very limiting 768p resolution
Bad contrast and bad black uniformity
Can't get very bright
These all add up to a poor image for gaming on. For the price of that TV you could have gotten a used Plasma TV of similar or even larger size, from around 2010-2013 (Samsung/Panasonic brands) that would have blown the Hisense out of the water in picture quality and motion handling, not to mention most from the year range I shared were native 1080p. If you can find one locally and are still in the return window then my advice is to take back the Hisense and get a used plasma TV.