Font blurring?

Hi, while working on UI, found that after packaging texts are getting a little blurrier. Same thing is when previewing on standalone. The smaller the font size, the easier to spot this problem, like 12 or 10 size. I believe the engine compress fonts for more performance. How can I make my text look sharper?

Fonts are a vector format, which should look sharp at any resolution.
Could it be that your window or resolution is scaled? Either that or I’d expect some kind of post effect to do this like anti aliasing. Something that somehow is only running standalone. An engine setting? An NVIDIA control panel setting?