Hi,
Would you please perform a clean boot of the problematic computer to see if the performance issues still exist?
Steps to clean boot:
1. Click Start->Run...-> type msconfig and press Enter
2. Click Services tab and select Hide All Microsoft Services and Disable All third party Services.
3. Click Startup tab and Disable All startup items
4. Click OK and choose Restart
5. After reboot, check whether the problem still occurs
If you want to know the root cause of the issue, we need to analyze the performance log and dump file on the problematic server. Since the forum is not the best channel to troubleshoot this issue, I would suggest that you contact Microsoft Customer Support service to troubleshoot this issue efficiently. They are the best resource for this kind of issues.
You may obtain the phone numbers for specific technology request please take a look at the web site listed below:
https://support.microsoft.com/common/international.aspx?iid=174859&iguid=56907522-6886-4238-a70f-a1d06a4473c7_2_2&rdpath=1
Hope the issue will be resolved soon.
David Shen - MSFT