In slow mode, Sweep has access to more information about your repository and can tackle larger tasks.
In 5 minutes and without an IDE, I used Sweep to add a banner to our landing page. https://sweep.dev/
I also left a couple of comments on Sweep's PR, merged here: https://github.com/sweepai/landing-page/pull/226
Here's how you can onboard to Sweep: https://github.com/sweepai/sweep#getting-started-