Can you adjust the autosave interval?

Is it possible to adjust the autosave interval? I went hunting for an option to this effect and came up empty-handed, so I’m assuming this would have to be done via a hook or filter perhaps?

I’m working on a client site right now that has one particularly large page with a lot of rows/columns/modules and editing is S-L-O-W due to BB autosaving after every change. So, if I could say specify that I only want it saving every so often (or even just turn it off completely, temporarily) it would speed up the editing process for us quite significantly.