Consider using the BORE CPU scheduler (or making CachyOS the new kernel upstream)

[ahydronous]

The results for the BORE CPU scheduler (both the CFS and EEVDF variants) are pretty convincing: This is on a Ryzen 5800X.

https://github.com/firelzrd/bore-scheduler

Although this is part of the CachyOS kernel which has many many performance improvements, and is based on the Arch kernel already: https://github.com/CachyOS/linux-cachyos

What is extra interesting is the fact that the old CFS scheduler with BORE optimizations sacrifices a tiny bit of fairness compared to EEVDF-BORE, but gains a huge amount of saturated response (aka snappiness under load).