There is a known issue with performance if you are running our intel based Docker image on an M1 or other ARM based system.

We will be pushing out support for M1/ARM shortly..
We have a test image out there if you want to try it - using this one should provide much better performance.
https://hub.docker.com/layers/fusionauth/fusionauth-app/1.32.1_multi/images/sha256-da71d5be2bc849ef9d4e1205508fa34994973d75798a47cab9a8484ee2592ff7?context=explore

is the latest current experimental version. Make sure you choose the arm64 based image.

have you seen this https://github.com/jerryhopper/fusionauth-app-multiarch ?
it's from community member @hopper-jerry and may meet your needs.