From what I have read your system is running at an average for most machines running windows 10. To reduce this further, you will need to close / disable all non-window apps that came with windows 10. If you have had the latest windows 10 update this month check that your windows defender is turned on, specially the app & browser control is still on. By trimming unneeded programes you should be able to get your cpu usage down to 2%.
Just be prepared to do this process every time an update is installed as microsoft update sees missing or inactive programes as a fault and runs default settings to fix the error they see as an error, even if it is as it should be.