You might be able to use the extra time to have it do things like run some formatters, linters, run the code in a VM before you inspect it, or modify it for compliance with a style guide that you've written, and continually revise it for up to 5 tries until the conditions are met, something like that.

So maybe there's something useful to do with the extra speed. But it does seem more "useful" for vibe coding than for writing usable/good code.