Could be many things, but we know it is user created, not graphics drivers.
Do you have GPU scaling enabled?
Morphological filter enabled?
Using a VSR screen resolution? These resolutions are for games only, not everyday desktop use.
Where did you come up with the 2560x1440 resolution?
- Pros Affordable. Sharp UHD image. Generous feature set.
- Cons UHD only works at 30Hz. Narrow viewing angles. Skewed greens.
- Bottom Line The Dell 28 Ultra HD Monitor P2815Q is a well-equipped 28-inch Ultra-High-Definition (UHD) monitor with a sub-$600 price. It delivers a highly detailed 4K image, but it can't do it at 60Hz.
What was an issue was playing these games at a resolution of 3,840 by 2,160. As with the ViewSonic VX2880mlBest Price at Amazon, the P2815Q is limited to a 30Hz refresh rate in UHD mode, which results in choppy motion handling and significant screen tearing. If you scale down to a 1,920 by 1,080 resolution, the P2815Q will run at 60Hz, but you'll sacrifice all of that UHD goodness for smoother game play.