Hi again
Here's an example of a thread for a system that had high-latency in that same Windows driver component (I believe the "wdf" in the driver with the latency refers to "Windows Driver Foundation" [or similar wording]) ... When you see that wdf01000.sys driver in forum posts, it becomes obvious that that driver is working in tandem with an input-output device of some kind [likely it is getting "called" by the device driver that makes use of it]. In the thread I'm pasting in, strangely enough, the stuttering would build-up over time & could be eased by the workaround of switching the wireless receiver on the mouse off and then on again.
Sound stuttering and high latency from Wdf01000.sys and ACPI.sys - Windows 10 Forums
Since your second-highest latencies are from the DeckLink driver in the Black Magic software, I'd keep checking on their site for updates, they have quite a number released within the last week. They also can be contacted by email, phone, and forum. Looks like they support their customers well. You have above-average components in your system - I would think it will fly though most things nicely, & the stuttering should be fixable.
I had mentioned the "sync" utilities in some video card drivers - which can sometimes help with video/audio stuttering --- usually the stuttering that these help with are those that occur when your video card has frame rates so crazy high that a low-end video application (like a You Tube video or a low-end game) can't handle it. The buffering used by the syncing can help with low-end stuttering issues. [I believe it can be turned on and off fairly easily -- many gamers prefer to turn their "sync" utility off when playing a high-end intensively demanding game .... because the buffering can slow the reaction time of the mouse/keyboard (a bit fatal at times for first-person shooter games)].
If you want to check the DPC Latency issues with Windows 10's own tool, you could give it's Performance Monitoring tools a try to create traces, and download the Windows 10 Assessment and Deployment Kit - which contains the Windows Performance Analyzer - which can provide you with graphs to examine your traces. I just tried it myself this last week (old dog learning new tricks). The built-in help files could be updated better, but the tools aren't so bad with a little trial & error. Here's a link to the Windows 10 ADK:
Download the Windows ADK – Windows 1 Hardware Dev Center
There's a thread by niemiro that walks through some tools for working with latency issues - it was written for Windows 7, but much of it remains effective for Windows 10, too. Unfortunately, the third-party Latency Monitor tool hasn't yet been updated to work with Windows 10 - so its output might not be as good for Windows 10 as it was for 7 & 8... The good news is that Windows 10's Performance Monitor & Performance Analyzer tools help fill the gap. Here's a link to niemiro's how-to:
https://www.sysnative.com/forums/wi...vista-7-8-a.html?highlight=how+to+DPC+latency
Seems like we ought to find something with enough digging around.