# \#speeding

**URL:** https://forum.plexim.com/tag/speeding/566.md

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## [How to shorten the simulation time of multiple sub-systems?](https://forum.plexim.com/t/how-to-shorten-the-simulation-time-of-multiple-sub-systems/1052)

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**Author:** [@phdyalu](https://forum.plexim.com/u/phdyalu)\
**Replies:** 1\
**Last updated:** [September 2, 2021, 1:43pm UTC](https://forum.plexim.com/t/how-to-shorten-the-simulation-time-of-multiple-sub-systems/1052 "2021-09-02T13:43:26Z")

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Hello dears, I modeled three sub-systems connected together. When the simulation is running, it takes a very long time to finish even if the set time is short (3 seconds). Is there any mechanism to shorten the simulati…