MatthiasLundgaard

If you have ANYTHING on the HDD that your system uses, it'll seem to lag when accessing said stuffs.
 
For example if you installed Discord on your HDD by accident, you'll get a lag feeling when Discord loads on boot.
 
Something to check.

I'll return to this topic later, when im done with work and have tested the things that have been suggested in the thread! ?

If you go to 'Device Manager' and then 'Disk Drives' it should have then listen there, and one should be called 'KINGSTON' followed by some numbers or something, that's what model it is.

Since 2007 I have used only one drive in my gaming PCs and those drives have been WD 10,000rpm Raptors. From those I went straight to large SSDs. 
 
I started using 10,000rpm dives to fix the stutter problem I had with MS Flight Simulator and the game, Oblivion. Both are open world and both had lots of user added content(mods).
I improved performance even more by removing all other drives from the system. Windows liked to "check disks" and that slows things down. Windows may have been fixed but I have not checked in over 10 years so I would not know.
 
The only type of stutter that I get now is from GPUs. Usually from drivers that can be rolled back to fix.
In one case it was a motherboard/GPU compatibility problem. This was easy for me to test since I don't sell my old GPUs. I simple put another GPU in and did some tests.
 
What I do works for me and has been working for a long time.
I recently fixed a problem I had with stutter I got from 4k textures in my heavily modded games by using a large 970 EVO. I was an expensive fix but so was paying $300 in 2007 for a WD Raptor. 
 
 
 
 
 

Well because you've got your games on a separate drive, I'd be led to believe that could also be the problem, but it does sound like it's your OS' drive as that would also have an effect on your games. I think, if it's that much of a hindrance to your machine, you might be best off saving all of your documents (to a cloud or USB or something) and resetting your PC fully. And then reinstalling all of your stuff. I know this is a hassle, but if the problem is still there after doing this, it kinda finds the solution to your problem, which would probably be to load your OS onto a different drive, or buy a new drive as well. BUT FIRST BEFORE DOING ANY OF THIS, UPDATE YOUR SSD' DRIVERS! https://www.kingston.com/en/support/technical/category/ssd
Find which one is yours from here!

You simply go to Kingston's webpage, find your drive model somewhere (probably support) and there you'll have the downloads for it.
I think the tool is called Kingston SSD manager or smth like that.

It's most definitely got to be the Ryzen. I have a 2600 and sometimes in games around 10 frames would freeze in a row. In worst case scenario maybe a whole second or two would freeze. I have had PSU upgrade, more RAM added, an HDD replaced too. None of those affected the freezing in games. Normal use, I don't notice it freeze. For games, CSGO is just crazy on how much it freezes and for how long. It typically would freeze around the round end time, and half point times, so maybe something to do with the servers. Apex would freeze the same as well ocassionally. Both source engine games mind you. It kind of depends on the game that is running and it's resource usages as to how much it freezes and how often. Tbh I just got used to it. lol. Try setting your pc to High peformance power plan and do stuff on it for 60mins and not how often it freezes and how much. It works for me sometimes.
 
This guy talks good stuff