Yeah definitely not. Caching could probably help mitigate it.
Discussion
Yup. And only do the calculations that are most relevant. Your web of trust will help you to know which sources of information to include and exclude, which will help you to avoid wasting resources on low-yield calculations.
btw I have a feeling from your banner pic nostr:npub1s6ka82ar3g9tswkqhrwyf3j50eq7uttdnzplp9k8r59su8adxfnsjafz5h that we just might agree on the #1 and #2 movies of all time π