I also have the UR20.

I use my ksc75 daily with the headphone jack.

Try using yuzu-mainline-git from the aur and change your compile flags (edit makepkg.conf) to match=native mtune=native and O3. That gives a 15% boost in totk.

Also use zram instead of zswap as that that causes terrible stuttering on yuzu if you are short of ram. The usual recommendation is to use zstd compression but I can tell you that lz4 performs better on yuzu.

“sudo pacman -S zram generator” then “sudo nano /etc/systemd/zram-generator.conf” and paste this:

[zram0]
zram-size = ram
compression-algorithm = lz4
swap-priority = 100

Also make sure you are running gamemode with yuzu. Same with steam games.

I moved from a gtx 1060 to an RX580 and it has been terrible, recording in obs is horrible to the point that the cpu yields better results and now a recent kernel version broke the power meter on all the polaris gpus.