Y-axis formatting broken with >1000 ms latencies

The end-to-end latency from my home can be much more than 1000 ms for some data services with 5 serial queries. However, the y-axis formatting is broken:

<img width="474" alt="Screenshot 2023-04-17 at 18 14 32" src="https://user-images.githubusercontent.com/81939/232530923-31b90aa8-e142-455b-900e-b6c551a9e6b6.png">
