Have you tried changing CPU_MAX_PERF_ON_BAT from 30 to 100? That setting would throttle your CPU to 30% of the turbo clock speed, which is around 1.3GHz. You should also try upgrading your operating system. GNOME 45 and its packages may improve performance, along with the newer graphics drivers in the 23.10 repositories.
Have you tried changing CPU_MAX_PERF_ON_BAT from 30 to 100? That setting would throttle your CPU to 30% of the turbo clock speed, which is around 1.3GHz. You should also try upgrading your operating system. GNOME 45 and its packages may improve performance, along with the newer graphics drivers in the 23.10 repositories.