Put the summary of the bug you're having here
What I expected to happen was...:
for Minecarts to move as they did in 1.13.2
What actually happened was...:
Describe what happened here
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...
Minecarts seem to be moving at the same speed as before. The lag is probably caused when the minecart moves from one chunk to another (MC-137537).