Question Dual-Mode monitor looks pixelated in FHD mode ?

[help me5418]

Monitor: Alienware AW2725QF Dual-Mode (4k 180hz and FHD 360hz)

My monitor looks very pixelated and fuzzy in FHD mode. I know FHD looks bad, but mine looks way worse than a normal 1080p. Everything looks good in the 4k mode though.

I changed the settings, reset to default settings, and tried with different computers.

Could this be normal because it's a Dual-Mode monitor, or is it faulty ?

 

[Lutfij]

How are you hooked up to your monitor off your display source? Are you using the cables bundled with the monitor? Speaking of display source, what GPU are you working with? Driver version for said GPU? What OS are you working with?