# Unresponsive replace operation - extremely slow performance

**URL:** <https://the.fmsoup.org/t/unresponsive-replace-operation-extremely-slow-performance/3903>\
**Category:** Questions\
**Tags:** performance, filemaker\
**Created:** [January 11, 2024, 6:06pm UTC](https://the.fmsoup.org/t/unresponsive-replace-operation-extremely-slow-performance/3903 "2024-01-11T18:06:11Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![xochi](https://avatars.discourse-cdn.com/v4/letter/x/0ea827/32.png) [@xochi](https://the.fmsoup.org/u/xochi)\
**Post date:** [January 11, 2024, 9:05pm UTC](https://the.fmsoup.org/t/unresponsive-replace-operation-extremely-slow-performance/3903/8 "2024-01-11T21:05:07Z")

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I ran into a performance regression when I upgraded from FMS18 to FMS19, and I was kind of hoping FM 20 was faster.

However, in my case the slowdown only happened while using FMS - running FMP only was just as fast as before. My details here: [FMS19.6.3 poor performance on M1 mini / Ventura](https://the.fmsoup.org/t/fms19-6-3-poor-performance-on-m1-mini-ventura/3372) (Edit: fixed link)

I have not yet run these benchmarks under FMS20.

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