Hi @Paulo Torres!

Since OS UI v2.11.0 we have new extensibility features for patterns with external providers, the Carousel is one of them and you can change the speed of the carousel using those new features. 

To change the speed you need to use the SetSplideConfigs client action and set the value for the Interval (provider option to change the auto-play speed in milliseconds). Through this client action, you can also change the speed of the transition and the rewindSpeed. 

You can find more info about these features in this forum post or in our documentation. 

Let me know if you need help.

Best regards,
Jéssica M.

Thanks a lot @Jéssica Mendes :)