Since you didn’t list your DAW or OS so I can’t be specific but almost all modern DAWs have MIDI modifiers in them for just such a use. I use Cubase 11 on a Mac mostly these days so in the track receiving the Scaler info I use a MIDI compressor that lets me dial down the maximum velocity. Live has this as well.
There is nothing directly in Scaler for this yet on a global level. You can go into each chord and edit velocity per note but that not practical. Basically you want to limit the high velocity down so it’s not above 90 or so.
There is an external plugin that is free that I mention here… MIDI filter modifier - MIDI Polysher