Use a high-quality 1440p monitor with a sharp IPS or OLED panel
Enable maximum refresh rate in your display settings
Set GPU scaling or monitor scaling to preserve image clarity
Use supersampling or downsampling from 4K to 1440p in games
Turn on DLDSR, DSR, or VSR if your GPU supports it
Use anti-aliasing settings that improve edge smoothness
Increase texture quality, anisotropic filtering, and shadow quality in games
Use a calibrated color profile for better image accuracy
Sit at an appropriate viewing distance for higher perceived sharpness
Use a high-quality HDMI 2.1 or DisplayPort cable
Keep scaling at 100 percent or use integer scaling when appropriate
Choose a monitor with high pixel density and good contrast
Use HDR only if the monitor supports it well
Keep Windows or OS display scaling optimized for readability
Use full-screen exclusive mode when available for better scaling control