Garena uses an automated detection system. Modifying game files is the easiest way to get a permanent hardware or account ban.
The "General" sensitivity is the most important factor for drag headshots. Try these optimized settings: 95–100 Red Dot: 90–95 2x Scope: 85–90 4x Scope: 75–80 Sniper Scope: 50–60 2. Master the "Drag Headshot" Technique Garena uses an automated detection system