Short post from a Silver Scrub, but one thing that's helped me improve a lot is playing expecting all the cheesy angles and hiding spots.

Pre aim is a very big step in improving if you don't do it already, but with it alone you will be reacting which still gives a considerable addition to reaction time.

Bigger Reaction Time = More room for error and enemy to kill you.

Expect your enemy to be where you aim. Set in your mind that they will wide swing this or shoulder peek it. It's helped me react faster to greedy peeks on Hookah and cheesy peeks on top of Icebox Tunnel. Just act as if you have info that someone is there, and make sure to do your Aim Labs/Kovaaks so that your muscles can react properly if someone actually is there.

Thank you for coming to my Val Talk.bow