Selon derek holzer derek@x-i.net:
maybe it's difficult to control this ... the only thing I can do is to
decrease
the microphone input level at these moments
You could use the [limiter~] from Zexy, I think also Unauthorized has one, and set the limit low enough to prevent your peaks from getting too high.
what about putting the [limiter~] after the delay (with the limit set to almost maximum) ?