# One script or multiple? Impact on performance

**URL:** <https://forum.defold.com/t/one-script-or-multiple-impact-on-performance/16262>\
**Category:** Questions\
**Created:** [January 28, 2018, 8:58pm UTC](https://forum.defold.com/t/one-script-or-multiple-impact-on-performance/16262 "2018-01-28T20:58:49Z")\
**Posts on this page:** 1\
**Showing post:** 26

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**Author:** ![kumokairo](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/kumokairo/32/7534_2.png) [@kumokairo](https://forum.defold.com/u/kumokairo)\
**Post date:** [February 10, 2018, 3:31pm UTC](https://forum.defold.com/t/one-script-or-multiple-impact-on-performance/16262/26 "2018-02-10T15:31:50Z")

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Has anyone tried ECS in Defold?

@britzl can you expand on 1024 scripts per project? Is it the maximum number of actual LUA script files in a project, or a runtime limitation of only 1024 script-components being executed at runtime? Did a quick search and couldn’t find anything except (max instances count capped at 1025) [Max\_instances is effectively capped at 1025 (DEF-3780)](https://forum.defold.com/t/max-instances-is-effectively-capped-at-1025/1211)

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