Try
Options (top menu)
Then click Resolution. If at 120 it may induce 'stepping' effect.
Changing the Resolution, then regenerating (using the new more concise resolution) may help.
Or it may be an effect you have on the tracks (trying to adjust to the volume changes) that is causing this .. hard to say without an example.

What you mean by "all sounding like they are pedaling 8th notes in the sustain" is kind of unclear here.

/Please pick one of your two recent threads to continue this discussion on

I do not work here, but the benefits are still awesome
Make your sound your own!