Check the following article to restore Default Font Settings in Windows 10
https://winaero.com/restore-default-font-settings-windows-10/
In addition, what about other user account? Create a new admin account and check font performance.
Finally, you could in-place upgrade current system by a Windows 10 iso image, this way will fix system issue. Download the latest iso from Media creation tool, it’s easy.
https://www.microsoft.com/en-us/software-download/windows10
Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.
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