The firewire driver was pretty busy during the 20 seconds that Lat Mon ran so it might be worth disabling it for a while to see if that makes any difference.
The only thing I see in the VEW is:
Log: 'System' Date/Time: 03/12/2021 04:37:25
Type: Warning Category: 0
Event: 2 Source: HidBth
Bluetooth HID device (08:b7:38:13:7f:9c) either went out of range or became unresponsive.
but that might just be a wireless mouse going to sleep.
As far as the case fan goes very few PCs have one these days but if your graphics card generates a lot of heat you might still need it. If you disconnect it just watch the temps to make sure it doesn't start running hot again.
Run ShellExView again and take a screen shot of the disabled extensions. You might also re-enable them and see if the problem gets worse.