That is totally weird.
Will be a problem for you I ask you to reinstall your Windows on GPT partitioning ?
I have a person with the same issue as your at the moment.
Can you please run this command in cmd as administrator
Code:
dism /online /cleanup-image /restorehealth
I have the feeling the MBR partition bugging somehow at the moment we have 3 people complaining from the same problem.
In the beginning there was only NVIDIA and Asrock but now we have member with MSI motherboard experience the same issues.
Can you please confirm what is the Linux distro are you using so I can check if there is a way to test your VGA performance under linux.