Why is the screen of Peace Elite blurred? what can I do?

1, resolution problem! The pixel is high, the game has no corresponding resolution, and the screen is forced to stretch!

2. Baidu can download the image quality assistant, change the resolution to 2560x 1440, and then open the game in pc mode. This photo is so beautiful. Note that the taskbar should be opened with another software, so that the taskbar will not be hidden, otherwise the taskbar will be hidden and the game will still be stretched and blurred.