Out of the box Dorico seems to set most things at full scale with a somewhat linear kind of dynamics curve! It can be quite brash/loud, and in your face (particularly with HSO). Scale that mess down a good 30% at least! Get some breathing room for the mix.
HSO’s default settings with Dorico ‘out of the box’ is SO LOUD that it gives a terrible impression of the library’s potential (it also has twisted and just ‘wrong’ idea of how to use the ‘slow legato’ keyswitch, so I just delete the legato entry in the expression map right away, and let Dorico auto overlap). Tone it down a LOT dynamically (I start at around 50%), and it’s a lovely little library.
I don’t know that specific library, but some use a combination of velocity and some CC event to get different types of attack.
The first place to check is in the instrument plugin itself. If it has options to adjust the ‘velocity or dynamics’ curve…experiment with that first.
I.E. In HSO, there’s a dynamic curve to play with…and it can drastically impact the overall style and quality of the mix.
Within Dorico…
You might try scaling the velocity down a bit. Several ways to do it.
One way is to adjust the overall dynamic curve of the entire score in Dorico’s playback options.
Check the expression maps for the given articulation that has ‘too strong’ of an attack. If velocity is involved in dynamic controls, set the ‘max’ velocity to something lower and see if that helps. Even if your library isn’t using velocity at all to influence the attack (only CC controls), you still might try setting a lower ‘max:’ for “Volume dynamic:” in the expression map.
(Note, I have velocity going here, because I layer another Sonic slot set to the same channel with a very faint velocity sensitive spiccato sound on any non-legato notes to give the beginning of phrases a small bite that only fades in with higher velocities)
Finally, can use the note editor to manually pull velocity and or dynamic CCs up/down for selected notes.
Note, if you scale an instrument back in terms of how ‘hard/aggressive’ it plays, you might also need to bump up the master volume levels a little in the main mixer to get things back in balance with the rest of your mix (or bring everything else down).
Other things that can help…
You get a nice assortment of high end effect plugins with Dorico. It has an AMAZING dynamics EQ, and a nice supply compressors. Experiment with these, as you’d be surprised at how well they can isolate annoying harmonics (micro adjust very specific attack characteristics in given frequency ranges) for a given instrument and put them in a mix in a way that soothes the ears instead of having a ‘nails on a chalk board’ effect.
This EQ Mixer insert is amazing!
And the multi-band compressor is pretty nice too!