Why on my MacBook Pro CPU usage is always high?

Hello, mahfoozalam113.

Thank you for posting in Apple Support Communities. We understand that you’re seeing higher than expected CPU activity on your MacBook Pro, and you’re curious about the cause.

Have you been able to view your CPU usage in Activity Monitor to see which applications or processes are using your processor? 

This article from the Activity Monitor User Guide will show you how to check:

• View CPU activity in Activity Monitor on Mac - Apple Support

Warmest Regards.