Ryzen 5900X strange CPU Usage, low FPS

I am in the odd. I am GPU limited I would say 90% of the time. I built a new PC a few months ago and paired an i7 10700KF with an rtx2060super running 1440p ultrawide. Older CPU I was hitting massive CPU bottlenecks but they are occasions where the 2060s would drop below 90% and this mostly occurs during landing at big airports.
10700k just chills in the background while the 2060s gets worked like a dog.