Use a high-refresh-rate monitor and ensure your fps_max is set to 101 for the smoothest movement.
CS 1.6 is a game of game sense, recoil control, and movement. Relying on a wallhack prevents you from learning the "metagame"—predicting where enemies are based on sound and timing. A Better Way to Improve cs 16 opengl wallhack better
A wallhack solves these three problems.