Persistent "performance" setting for CPU frequency scaling governor

Hello, I do not succeed to force MAX CPU speed on core 18.04. After reboot the governor remains on ondemand setting. Is there’s a way to make the setting persistant? I tried to disable the service but it is launched after reboot.

there is a cpu-control interface that allows access to /sys/devices/system/cpu/cpufreq just add a snap that sets it to performance after boot through this interface …