Extreme Throteling on i5-6400
I'm transitioning to all Linux gaming and have a particularly weird problem:

Relatively modest system:
RTX 2060(v1)
32gb Ram
Loading ISO's and bios from NVME (Gen3x2)
ZorinOS Education 16.1 (Ubuntu20.04 Distro)

Games Attempted:
Madden 2009
Madden 2012
Ratchet & Clank
Shadows of Colossus

No matter what settings I change every game I attempt to load only runs to between 40 - 60% speed while my cpu only utilizes one core that sits at 100% utilization. Here's what I've tried (all of which have made 0 impact in the issue):

- Tested same system running windows 10 (Ran perfectly)
- Reset settings and tested on from versions 1.5 to 1.7
- Tested utilizing different GPU drivers (From the open source repos to NVIDIA drivers versions 513)
- Tested running Vulkan to OpenGL
- Tested at base resolutions (no up scaling)
- Tested with and without MVK
- Checked varying thread counts from 0 to 4
- Enabled and disabled thread locking
- Changed the slider variables (Cant remember the name, but you uncheck the box and it lets you change the two sets of slider to +/- 3)
- Reinstalled the OS (2 times)
- Tested with different graphics cards (rx480 8GB, rx570, and integrated graphcis)
- Tested with spare CPU (i5-6400)
- Changing frame locking speeds

I'm dedicated to getting this thing working because now its mocking me, but I'm a hardware architect not software so I'm at my whits end on this one. I really appreciate any help you can give, especially if you can explain what I'm missing.

Thank you!

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Just a guess: Are you sure that PCSX2 runs on your GPU? It sounds like your iGPU is probably used instead. Also, please include some logs, they might point us into the right direction.

Did you try another Linux Distro or just the one you listed?
What's the output of inxi -Fxz?
What versions of PCSX2 did you use (Self-compiled, Appimage, PPA, ...?)
Did you try to disable Power-saving features, of your CPU especially?
Tired of always changing your PCSX2 Configuration for different games?

Check this out: https://forums.pcsx2.net/Thread-PCSX2-MultiConfigTool

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