With my list, the loading speed became a few seconds instead of a minute.

@lolamtisch Could you please review this? Sorry for not providing any info right away, but because the rate limits were not being handled, list synchronization was taking way too long. The rate limits are specified here: https://shikimori.io/api/doc/2.0 (5 requests per second and 90 per minute). Also, the correct limit for fetching title information is documented here: https://shikimori.io/api/doc/1.0/animes/index (50 instead of 25). I'm not sure if this is the best approach for handling rate limits, since I'm not a programmer and I figured it out with Gemini, but the code works.