An "extra quality" aim config isn't a cheat; it's an optimization of the game's network and input settings to make your crosshair more responsive and your bullets more likely to land exactly where you're aiming. Core Network Settings (Rates)
Beyond network rates, certain commands directly affect how your weapons feel. Recommended Value cl_dynamiccrosshair 0 cs 16 cfg aim headshot extra quality
: Requests 101 updates per second from the server. An "extra quality" aim config isn't a cheat;
The Ultimate Guide to CS 1.6 Configs for "Extra Quality" Aim and Headshots cs 16 cfg aim headshot extra quality
Stabilizes frame rates for a smoother, more predictable aim. m_rawinput 1
Keeps the crosshair static, making it easier to track the center of your screen. cl_crosshair_size small