Gaming laptops — especially budget gaming laptops — tend to skimp on display quality. Even big manufacturers like Dell are guilty of slapping cheap TN displays on otherwise great gaming laptops. The display is the most important bottleneck for your games.
A gaming laptop’s display is literally your window into the game world and as such, it’s one component that can literally color your experience. A cheap display completely ruins an otherwise great gaming laptop, and subverts the work the GPU puts in. What good is being able to play games at high graphics settings when you’re going to have trouble even seeing them?