# How to speed up kopia sync-to?

**URL:** <https://kopia.discourse.group/t/how-to-speed-up-kopia-sync-to/2782>\
**Category:** General Topics\
**Created:** [April 8, 2024, 12:09pm UTC](https://kopia.discourse.group/t/how-to-speed-up-kopia-sync-to/2782 "2024-04-08T12:09:10Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![kopund](https://avatars.discourse-cdn.com/v4/letter/k/e79b87/32.png) [@kopund](https://kopia.discourse.group/u/kopund)\
**Post date:** [May 20, 2026, 10:02am UTC](https://kopia.discourse.group/t/how-to-speed-up-kopia-sync-to/2782/6 "2026-05-20T10:02:44Z")

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I realise this is an old post, but thought a current update still makes sense.

I just started syncing to an offsite SFTPGo server. ~230,000 blobs, 5.5 TB, 1GBit/s down, 50 MBit/s up, on both ends the repository resides on an external spinning drive. Blob listing initially took up to 2 hours. For blob listing, `--parallel` is irrelevant (it affects file upload), changing `--list-parallelism` makes all the difference. With `--list-parallelism 50`, blob listing now takes 14 minutes. Above that, the connection is aborted in my case.

Hope this helps someone!

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