I am just move to Kubuntu from Windows, and everything in Kubuntu seem so small.

+ I try to change the resolution but text is really blurry after changing from 1920x1080 to smaller resolution.
+ I try scale display but it will make Konsole has many ugly line (many people has this problem when they use scaling factor).
+ I try to change font DPI but it is not perfect, too.

Here is some default setting in my Windows os, and it look great.

Below picture, Windows resize text, app and everything to 150% and it is very perfect.

https://i.imgur.com/PO9MBu0.png
https://i.imgur.com/AaCoPQm.png

How can i resize everything on Kubuntu to 150% perfectly like Windows?

Thank you so much.