Left Mouse Button Not Working Well While Playing Games

1. Quick troubleshooting steps
 Basic check
Change mouse test (to confirm whether it is a hardware problem)
Change USB port (to avoid poor contact)
Turn off the “Mouse Acceleration” option in the game.
 Driver update
Device Manager > Mouse and other pointer devices
Right click to update driver > Auto Search
2. Game Exclusive Fixes
 Turn off Game Mode
Settings > Game > Game Mode > Off
Restart the game to test
Adjust mouse returns
Download mouse vendor software (e.g. Logitech G Hub)
Reduce Polling Rate to 500Hz (high return rates may conflict)
 Disable full screen optimization
Right-click the game shortcut > Properties
Compatibility > Check “Disable full-screen optimization”
3. System-level adjustments
 Power Management
Control Panel > Power Options > High Performance
USB Settings > Uncheck “Allow computer to turn off this device to save power”
Registry Repair (anti-double-click failure)
Press Win+R and type regedit
Navigate to:
HKEY_CURRENT_USER\Control Panel\Mouse  
DoubleClick DoubleClickSpeed > value to 500 (reduce double-click sensitivity)
4. Ultimate Solution
Reinstall the mouse driver
Device Manager > Uninstall Mouse Device (Check “Remove Driver”)
Unplug the mouse and reinstall it automatically
 System Restore
Search for “Create Restore Point”
Select the date before the problem occurred to restore