Could you please confirm if by uninstalling the Intel® XTU your computer's behavior normalizes?
Please confirm which version of Intel® XTU is installed on your computer?
If you are not using Version: 126.96.36.199 (Latest) I suggest downloading it from here Download Intel® Extreme Tuning Utility (Intel® XTU) (uninstall current one and install this one)
You may get more relevant information here https://downloadmirror.intel.com/24075/eng/XTU-6_0-MR_Q4-ReleaseNotes.pdf
Please let me know if issue persists.