I just got a new GPU, AMD RX 580 Sapphire Nitro+ and I saw my pictures were off (overscan I think is the word, where half the icons are cut off by the edges). When I go to AMD Radeon settings program, I can put the HDMI scaling at 5% to fix it. However, it lags my computer in a weird way. When i hit minimize on an app/webpage, it like drags a bit. It is not instant. If I put the HDMI scaling at 0% and stay overscanned, it opens and closes instantly. There is no setting on my TV to fix the ratio (its really old) and I have never had this problem until i got an AMD GPU. It is a small inconvenience but it does not make my computer feel to high end.