# Cloning rows is slower than expected

**URL:** <https://community.glideapps.com/t/cloning-rows-is-slower-than-expected/86131>\
**Category:** Ask for Help\
**Created:** [January 25, 2026, 9:48am UTC](https://community.glideapps.com/t/cloning-rows-is-slower-than-expected/86131 "2026-01-25T09:48:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Simon\_Hill](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/simon_hill/32/94730_2.png) [@Simon\_Hill](https://community.glideapps.com/u/Simon_Hill)\
**Post date:** [January 25, 2026, 9:48am UTC](https://community.glideapps.com/t/cloning-rows-is-slower-than-expected/86131/1 "2026-01-25T09:48:22Z")

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Hi everyone,

I’m looking for some advice or shared experiences around performance when duplicating data in Glide.

In my app, users can “Save As” a forecast scenario. Behind the scenes, this creates around 10 new rows across 3 different tables, all tied together with a new Scenario ID. For each new row, I’m using a loop + Add Row + Set Column Values pattern to copy over existing values from the current scenario.

What surprises me is that this process is taking around 20 seconds, even though:

- Each new row only has ~15 columns being set

- The loop runs over a filtered subset (about 10 rows per table)

- The tables themselves are not huge

Functionally everything works fine, but the user experience feels slow for what seems like a fairly small amount of data.

My questions:

- Is this kind of runtime expected for this pattern?

- Has anyone found a faster, no-code or low-code approach to cloning rows across tables?

- Are there any best practices to reduce latency when using loops + Add Row + Set Columns?

I’m keen to avoid custom code or external automations if possible, but very happy to learn if there’s a smarter Glide-native way of doing this.

Thanks in advance — any insights would be much appreciated!

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**Author:** ![Darren\_Murphy](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/darren_murphy/32/47326_2.png) [@Darren\_Murphy](https://community.glideapps.com/u/Darren_Murphy)\
**Post date:** [January 25, 2026, 11:10am UTC](https://community.glideapps.com/t/cloning-rows-is-slower-than-expected/86131/2 "2026-01-25T11:10:42Z")

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I’ve always found the API to be much faster that workflow loops for any sort of bulk add/update actions.