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: