Sound too low

I’ve always wondered about it. Can I do something about this? When I open the Scaler’s Instument menu in Daw, Scaler’s own instruments are heard well and comfortably when playing loud, but if I open the Scaler’s Midi FX and open any other instrument from the menu, the playback is much quieter. This is even annoying.

As for Scaler’s own instruments and sounds. They even really sound good.

Haven’t seen this at all really. Some of my instruments in Kontakt are lower then others but this is a per instrument issue not retaining to Scaler. Can you gain match the volume between instruments. I usually need to do this, again not pertaining to Scaler but instrument gain balance.