Jahn

Sadly this does not seem to be the case (unless the nvme is the source of the issue)
However... I may have found the issue.
I normally run AVG or Avast on my computer, but since I had heard Windows Defender is better these days I was trying Windows Defender this install and kind of forgot about it.
I installed Avast just now and did a test and while it still does the not responding thing, it only does it for a brief moment and then the program start... "avast" improvement........... >.>

I recently ordered an ROG Maximus XI Hero (Wi-Fi) and a Core i9-9900KS
I'm reusing my 32gb of DDR4 3200 ram which are Corsair CMU32GX4M2C3200C16 sticks and my GeForce GTX1080.
 
I have a fresh Windows 10 install on an NVME (Samsung 970 EVO Plus 250GB) and most of my demanding games are on either a 250gb SSD or a 1tb SSD while my less demanding games are on a Hybdrid 2TB drive I also have an 8TB and a 4TB drive where I store my video projects.
 
Before getting the motherboard and cpu, my system was "snappy", no real issues other than when I wanted to stream newer titles, my CPU would constantly be at 100% use and the stream would become very choppy, I decided to try and grab a 9900KS to remedy this issue, but despite this being a fresh install, whenever I attempt to boot up anything on this combo, it's slow to start, very slow and will say that it's unresponsive for up to several minutes before it finally boots at which point things are completely normal again.
 
As I've never experienced anything like this I'm honestly not sure where to even start diagnosing this issue, so figured I'd ask here.
Hopefully someone here might know something.

I have now attempted turning off Intel Speedstep, but there is no change.
 
I have however noticed that when I have task manager open, everything gets flagged as "not responding" for the time that they are loading slow and then go back to normal once they have loaded.

Thank you, unfortunately only one of those I haven't done is turn off speedstep, I'll give that a try though.

Go into the properties of them then "Details", in the drop-down menu choose Hardware IDs.
Should look similar to this: PCI\VEN_10DE&DEV_1B80&SUBSYS_36FD1458
But if I remember correctly, the 690LC should be the USB controller for the CPU cooler