# Custom movieclip class jerky tweening

**URL:** <https://forum.kirupa.com/t/custom-movieclip-class-jerky-tweening/284506>\
**Category:** Uncategorized\
**Created:** [March 19, 2009, 6:55pm UTC](https://forum.kirupa.com/t/custom-movieclip-class-jerky-tweening/284506 "2009-03-19T18:55:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![marinox](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@marinox](https://forum.kirupa.com/u/marinox)\
**Post date:** [March 19, 2009, 6:55pm UTC](https://forum.kirupa.com/t/custom-movieclip-class-jerky-tweening/284506/1 "2009-03-19T18:55:55Z")

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hi.

did anyone encounter this problem: i’ve extend a movieclip class, then i’ve created an instance and tween it. the movement was really jerky, compared to a similar movieclip loaded from the library.

thanks.Ⓜ