If I don’t say stupidity, all the waveforms come from the Square, and the more they are “rounded / cut” the more they lose in dynamics.
It is therefore normal to have a Sine more low than a Triangle and this one than a Square.
Most people just leave it that way I think.
Otherwise it would be better to increase the low values, rather than lower the dynamics of Square.
I adjust them after in my mixer 
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