Minecarts move slower when no entities are in them, but as soon as an entity enters, the minecart will move as intended.
Linked issues
duplicates 1
Comments 2
Thank you for your report!
We're tracking this issue in MC-275365, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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Can you please provide more information? You can do so by providing a video showcasing the bug with the debug screen enabled and providing the Observation and Expectations.