@sugo CPU is very much dependent on whats going on the preset... there are a few that use quite a lot of stuff. There are some options you can try to reduce CPU in the settings. Turn off HD waveforms. and turn on Poly legato trigger.
Access settings panel with either the top right tab on the main LCD pannel or using the cog in the top menu.
Having a decent soundcard and higher buffer settings also helps reduce CPU load.