Hey there,
Thanks for the report on this. We're aware of the issues that many people are seeing with high CPU usage, and we've been passing this information along.
There are a handful of workarounds that some people have said are helping with this. Since you're using an NVIDIA GPU can you give this a shot to see if it helps? Start up GeForce Experience and make sure your drivers are up to date. Afterward try launching Apex Legends through GeForce Experience and see if the same issue still happens.
/Kent