Re: 90% to 80% cpu usage only getting on Apex

@Phase-Me-Out 

It looks like you probably have only 4GB RAM. 

Check if reducing your in-game graphics quality settings have an effect here.

Performing a clean boot before starting the game will also help free up a bit more RAM:

http://support.microsoft.com/kb/929135 or http://help.ea.com/en/article/how-to-clean-boot-your-pc/

Thanks.