No. That can not be it. The screenshot shows that the CPU usage is 50%
If that value is total usage it is meaningless. That is value that shows what if application could use infinite amount of threads and use all cores of your 8-core. Any games 1-3 threads dominate. You must examine usage values of individual cores.
Exact same spot you are standing is incredibly heavy on cpu at times. I tested that spot yesterday.
