Most often, it is better to change your GPU scaling depending on the games that you play. ... Most often, GPU scaling will be disabled for games that are running on the same resolution as the monitor's native resolution. In these cases, GPU scaling will be disabled for games that have a lag when GPU scaling is enabled.
Is GPU scaling good or bad?
Overall, GPU Scaling is beneficial for retro games or those old games without the right aspect ratio. Cons: ... As mentioned, GPU scaling is ideal for older games. However, if you're playing new games, there's no point of using it because it'll only create an input lag, which affects your overall gaming performance.
Is it good to enable GPU scaling?
Enabling GPU scaling will technically induce input lag, about 1ms or lesser as the GPU needs to process the images to fit the scaling mode. ... Unless you are running a game that uses a different resolution or aspect ratio outside your monitor's native resolution, disabling GPU scaling should be fine.