[SOLVED] PC performing way below expectations (29th percentile)

Solution
Along with the Windows re-install, get the motherboard and GPU drivers from the manufacturer, not the ones that Windows uses by default.

After all that is done, re-run the test and if still bad we can start looking at temperatures and whether your CPU is clocking up to where it's supposed to be.
Mar 2, 2019
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Hello, thanks for your fast help :)

Did it work well before and this is new behavior?
No, for some time it appears to run at a slower speed... I bought it 5 years ago

Did you change any components?
Nope

When was the last time Windows was reinstalled from scratch?
(never?) 😓
 
Along with the Windows re-install, get the motherboard and GPU drivers from the manufacturer, not the ones that Windows uses by default.

After all that is done, re-run the test and if still bad we can start looking at temperatures and whether your CPU is clocking up to where it's supposed to be.
 
Solution