# Segmentation tools very slow for file above a few hundred Mb

**URL:** https://discourse.slicer.org/t/segmentation-tools-very-slow-for-file-above-a-few-hundred-mb/8701
**Category:** Support
**Tags:** segmentation
**Created:** [October 7, 2019, 11:23pm UTC](https://discourse.slicer.org/t/segmentation-tools-very-slow-for-file-above-a-few-hundred-mb/8701 "2019-10-07T23:23:10Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [October 8, 2019, 8:40pm UTC](https://discourse.slicer.org/t/segmentation-tools-very-slow-for-file-above-a-few-hundred-mb/8701/3 "2019-10-08T20:40:29Z")

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Also, if you watch a few of the videos on the tutorial pages you’ll see how slicer works for us, and you can also try some of our SampleData. If you find scenarios or data that don’t perform well can you share a short screen video to illustrate what you did?

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