configure disablement of CPU intensive effects

[evbo]

Hi, such an amazing art program that my son spends hours each week using. Two unfortunate events that keep happening though I was wondering if you would be interested in supporting features for:

1. The "Rush" effect takes considerable amount of CPU time to complete and my son easily crashes the program by over using it too many times. Could we make it configurable so that certain effects can be disabled or "give up" after a couple seconds of delay?
2. Can the "Save" feature be configured to immediately export to my filesystem? My son deletes saved images because he like the sounds Tux make, but then I lose his amazing work before remembering to export them.
3. Could a different autosave feature be configured where it saves an image every 60 seconds or so? He does so much amazing work but then it's gone when I'm not looking :)

Thanks again for this!