Precision starts with how you move. Most pros prefer combined with a large mousepad for consistent muscle memory.
Here is a popular and effective aim-focused script that creates a "sniper toggle" button: Cs 1.6 Cfg Aim
— Provides a tighter point of aim.
Copy your existing config.cfg file and save it in a safe folder on your desktop. Precision starts with how you move
Reducing lag and desync to ensure shots register correctly. Core Elements of an Aim-Oriented Configuration Cs 1.6 Cfg Aim