https://www.theregister.co.uk/2017/09/11/windows_10_stuttering_bugs/

Microsoft says it is working to address a bug that had caused some Windows 10 applications to experience momentary "stuttering" performance problems.

The flaws, reported to Microsoft by gamers who had installed the Creators Update, resulted in games stuttering and momentarily dropping frame rates. After months of waiting for a fix, users running the Insider Build have now been told by Microsoft that patches are in the pipeline.