Question How to make canvas exempt from resolution scaling?

I am building a game for android. In order to make the game have playable fps, I scaled down the resolution by 1/2. However, UI resolution also cut in half and it looks blurry. How can i make my UI exempted from resolution scaling?

this is the normal resolution

and this is the scaled down

 

Here are some notes on UI Anchoring, Scaling, CanvasScaler, etc:

https://forum.unity.com/threads/inc...size-between-two-people.1130146/#post-7261747

https://forum.unity.com/threads/game-ui-button-size-problem.1142650/#post-7337383