Hi and welcome to Arturia forums.
The clicking occour when a note is triggered while another note sound. If you have a long release or play overlapping notes (legato style), then you'll hear the click. Also if the release is to short you'll hear the click. On Sounds like this, the click can be very clear sometimes. Clicking can be especially loud when using Sine waveforms.
When playmode is set to "Mono", then you will allways cut of a previous playing note. You can try to set the playmode to "Poly". This will allow a longer release.
The Envelope Decay also control the Release.
Also if you keep the Mono playmode, lower the ENV decay so it don't sound when you hit another note (but not to low so it click because of that), and don't play overlapping notes you will not hear that much clicking if any at all.
I agree the click is very loud. It's normal for synths to have clicks. But i also think it's too loud clicking sometimes.
Don't know if this helps. But that's what i can do.
