Close unnecessary applications and background processes

Disable startup programs you do not need

Update your operating system and drivers

Scan for malware and remove infections

Reduce browser tabs and extensions

Lower graphics and animation settings

Limit background sync and cloud syncing

Adjust power settings to balanced mode

Clean up temporary files and unused software

Check for runaway processes in Task Manager or Activity Monitor

Improve cooling and remove dust from fans and vents

Add more RAM if memory pressure is causing CPU spikes

Use lighter software alternatives

Schedule heavy tasks for off-peak times

Reboot the system regularly

Reinstall or repair problematic applications

Disable unnecessary services

Optimize virtual machine and container usage

Monitor resource usage to identify the main cause