Zooming larger audio clips is slow

Zooming in and out of longer audio is very slow, and locks up the browser. See screen recording:

https://github.com/developmentseed/bioacoustics-frontend/assets/12634024/1d455a7d-2338-4e02-8b73-cd9234f93c73

(Adding clip bounds to longer audio is also quite slow.)

Start by reproducing the slowdown described in the issue, using the linked screen recording as a reference. Compare zooming and adding clip bounds on longer audio clips, then identify the frontend work involved and verify that both interactions remain responsive without locking up the browser.

Written by the indexing model from the issue text.