Extreme CPU usage in CSGO

Hello, while playing CS:GO im getting like 85-100% CPU usage which is pretty damn high and its limiting my FPS. GPU usage sits arround 50-60%. Any suggestions how can i lower the cpu usage ?

My setup: I5 6500

GTX 960 4GB

8gb ram

Is it all in one or two cores or is it total average CPU use? You could have parked cores enabled or something that is forcing the processor to be efficient instead of powerful. Also make sure all your drivers including your mainboard and processor drivers are up to date. Then use task manager to see what is consuming all the CPU usage. Just sort it by CPU usage and see if something is standing out. That processor should be more than powerful enough to not be bottlenecking on a GTX 960.