# Serious slowdown with FFTW v1.1.0 and v1.2.0 on Windows

**URL:** <https://discourse.julialang.org/t/serious-slowdown-with-fftw-v1-1-0-and-v1-2-0-on-windows/34726>\
**Category:** Performance\
**Created:** [February 16, 2020, 4:00pm UTC](https://discourse.julialang.org/t/serious-slowdown-with-fftw-v1-1-0-and-v1-2-0-on-windows/34726 "2020-02-16T16:00:24Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![giordano](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/giordano/32/2166_2.png) [@giordano](https://discourse.julialang.org/u/giordano)\
**Post date:** [February 21, 2020, 1:59am UTC](https://discourse.julialang.org/t/serious-slowdown-with-fftw-v1-1-0-and-v1-2-0-on-windows/34726/21 "2020-02-21T01:59:13Z")

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A new version of the Windows binary library is available for everyone, just update the packages with `]update`.

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**Author:** ![jebej](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jebej/32/1784_2.png) [@jebej](https://discourse.julialang.org/u/jebej)\
**Post date:** [February 21, 2020, 2:22pm UTC](https://discourse.julialang.org/t/serious-slowdown-with-fftw-v1-1-0-and-v1-2-0-on-windows/34726/22 "2020-02-21T14:22:38Z")

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Any possibility that this could be fixed on Julia LTS?

[Previous page](https://discourse.julialang.org/t/serious-slowdown-with-fftw-v1-1-0-and-v1-2-0-on-windows/34726.md?page=1)