Looks very reproducible here on Graviton 3 instance (m7g.16xlarge), affects multiple releases, including current mainline.

$ for I in `seq 1 3`; do java -Xmx4g -Xms4g -XX:+AlwaysPreTouch -jar dacapo-23.11-chopin.jar jython -n 20 -t 1; done

Yields:
  17u-dev: 3664, 3654, 3673 msec
  18-ga: 3995, 4000, 3982 msec <--- bulk of regression here
  mainline: 4004, 4020, 3937 msec

Bisection points to JDK-8273712 as the cause for the regression.