Slow down the request rate

[DanielJ]

I have just upgraded to 8.5 and am now following https://www.veeam.com/kb4874 to detect and fix corrupt files. We have several repositories on S3 and I detected corrupt files already on the first one. I start the repair session as instructed, but it's interrupted after 20-30 minutes with "Please slow down your request rate". How do I do that?