# Slow loop - gets faster after first run

**URL:** <https://community.thunkable.com/t/slow-loop-gets-faster-after-first-run/3752525>\
**Category:** Questions about Thunkable X\
**Created:** [April 18, 2025, 10:33pm UTC](https://community.thunkable.com/t/slow-loop-gets-faster-after-first-run/3752525 "2025-04-18T22:33:57Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\
**Post date:** [April 19, 2025, 4:12am UTC](https://community.thunkable.com/t/slow-loop-gets-faster-after-first-run/3752525/2 "2025-04-19T04:12:27Z")

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I don’t know why the duration would be so different but there’s a more efficient way to find a text string in a data source column by using the `find first occurrence of` block and the `list of values` block. I explain it here: [Thunkable and returns a corresponding value from my sheet - #2 by tatiang](https://community.thunkable.com/t/thunkable-and-returns-a-corresponding-value-from-my-sheet/2446081/2).

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