That doesn't seem unreasonable, PROVIDED that there is a lot of genetic material to begin with.
If genetic material is added by time and chance mutations, that would be a much slower process. That wouldn't allow for fast, large changes as there wouldn't be sufficient material available to sustain that kind of rate.
==That doesn’t seem unreasonable, PROVIDED that there is a lot of genetic material to begin with.’
Precisely! You make informational changes with information you don’t have. Excellent point Metmom!