# Build bFasterWithoutUnity=true makes the build much slower

**URL:** <https://qa.fmod.com/t/build-bfasterwithoutunity-true-makes-the-build-much-slower/15020>\
**Category:** Unreal Engine\
**Created:** [September 4, 2019, 1:42pm UTC](https://qa.fmod.com/t/build-bfasterwithoutunity-true-makes-the-build-much-slower/15020 "2019-09-04T13:42:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![vamp](https://avatars.discourse-cdn.com/v4/letter/v/f4b2a3/32.png) [@vamp](https://qa.fmod.com/u/vamp)\
**Post date:** [September 4, 2019, 1:42pm UTC](https://qa.fmod.com/t/build-bfasterwithoutunity-true-makes-the-build-much-slower/15020/1 "2019-09-04T13:42:47Z")

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Hi in the build files `bFasterWithoutUnity` is set to `true`, this is helpful when you are developing the plugin but when you compile day to day this just makes it much slower.

`bFasterWithoutUnity = false` the whole build is much faster in my experience.

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**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\
**Post date:** [September 12, 2019, 3:49am UTC](https://qa.fmod.com/t/build-bfasterwithoutunity-true-makes-the-build-much-slower/15020/2 "2019-09-12T03:49:35Z")

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The plugin shouldn’t need to be recompiled all the time, unless the plugins source files are being edited.