# Additional Windows Cause A Performance Hit

**URL:** <https://forums.unrealengine.com/t/additional-windows-cause-a-performance-hit/243762>\
**Category:** Platform & Builds\
**Tags:** unreal-engine, UE5-0\
**Created:** [August 4, 2021, 12:28am UTC](https://forums.unrealengine.com/t/additional-windows-cause-a-performance-hit/243762 "2021-08-04T00:28:15Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![JaredTherriault](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jaredtherriault/32/1194499_2.png) [@JaredTherriault](https://forums.unrealengine.com/u/JaredTherriault)\
**Post date:** [August 4, 2021, 1:53am UTC](https://forums.unrealengine.com/t/additional-windows-cause-a-performance-hit/243762/2 "2021-08-04T01:53:43Z")

</div>

Yup, that’s Slate. Even having separate tabs in the main window that aren’t rendering anything causes a performance hit. UE4 and 5.

But if you want to PIE without too much performance penalty you can minimize the editor after opening PIE in a new window or just use Standalone.

* * *

[Runtime DataTable](https://www.unrealengine.com/marketplace/en-US/product/4c7c4f8d523f4c90b2e26d23502c526c) : Import and export game data to and from CSV or Google Sheets while your game is running!

[easyCSV](https://www.unrealengine.com/marketplace/en-US/product/b25b855096e74d088d7553ccbe4072f2) : Read data from any CSV and put them in an easy-to-access string map!

[iTween](https://forums.unrealengine.com/t/open-beta-procedural-on-the-fly-animation-in-ue4-itween/10472) : Free, smooth, procedural object animation

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