Dell has not eliminated the DPC latency issues that have been affecting the XPS 15 9570 - NotebookCheck.net News
Pete Brown @ Microsoft::Windows on Twitter: "The Windows 10 1903 DPC latency spike issue (causing audio glitches on some PCs) is fixed in KB4505903. You should see that come through Windows Update
![DPC Latency problem (Storport.sys, nvlddmkm.sys, dxgkrnl.sys, etc.) Solved - Page 3 - Windows 10 Forums DPC Latency problem (Storport.sys, nvlddmkm.sys, dxgkrnl.sys, etc.) Solved - Page 3 - Windows 10 Forums](https://www.tenforums.com/attachments/performance-maintenance/309849d1607528568t-dpc-latency-problem-storport-sys-nvlddmkm-sys-dxgkrnl-sys-etc-1.png)