Laggy animation due to intel HWP feature
The animation performance of gnome-shell is dreadful while the EEP is set to balance_powersave(which you change the setting by writing /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference). However, what interests me is that when you use acpi-cpufreq driver(intel_pstate driver disabled), the lag disappears.
Another phenomenon is that performance is very different between on battery and AC, even when the EEP is set to the same.
Could you make some optimizations on intel HWP features?