Project app: slow build times on dynamic Classify pages

[eatyourgreens]

Package

app-project

Describe the bug

Project Classify pages can take 1s or more to build on projects with workflow selection or subject set selection.

To Reproduce

On a project like HMS NHS or Davy Notebooks, go to Classify and wait for the workflow choices to load. The lag can be quite noticeable.
https://www.zooniverse.org/projects/msalmon/hms-nhs-the-nautical-health-service
https://www.zooniverse.org/projects/humphrydavy/davy-notebooks-project/

Expected behavior

Page props are only ~12k for HMS NHS, so I'd expect download times under 100ms.

Additional context

Static builds (#2531) will fix this by serving static page HTML and JSON from the CDN cache. I'd still like to investigate why getServerSideProps is taking so long to run. It could be that there are redundant network calls being run for each page request, which we can remove.

[lcjohnso]

Fixed by #2531

[eatyourgreens]

#2531 didn’t fix the page builds. getStaticProps can still take ~1s to execute. #2531 cached the page props so that getStaticProps isn’t run for every request.