Instead of risking a malware infection with a shady download, you can build your own high-performance config. Open your config.cfg or create a userconfig.cfg file in your cstrike folder and add these optimal competitive settings:
Drop this file into your game directory (usually C:\Program Files (x86)\Steam\steamapps\common\Half-Life\cstrike ). Security Warning: The Dangers of Third-Party Downloads Cfg Cs 1.6 Aim No Recoil 100 Download