How to fix uGUI text blur?

Unity Engine
1

HI! I use “Screen Space - Camera” render mode for Canvas and “Scale with screen size” scale mode for Canvas Scaler
The text was blured when the “Game” view using resolution smaller than CanvasScaler’s reference resolution, How to fix it?
Like this:
Using resolution 351x197
reference resolution 1920x1080

2

Have you tried enabling the “Pixel Perfect” option in the Canvas component?

3

Yeah…I tried, But nothing had to happend

4

Is your font import settings set to dynamic?

5

I tried to change to dynamic, not solved
but I change to another set “Unicode” and set Font Size to “48”, it’s look like better
like this: