you’re getting a user’s species in an inefficient way, similar to what i noted over at https://forum.inaturalist.org/t/browser-extension-for-highlighting-observed-species-in-the-explore-page/65842.
look at how the dynamic life list in iNat (ex. https://www.inaturalist.org/lifelists/pisum) gets data, or look at how my tool that utilizes the underlying API route (ex. https://jumear.github.io/stirfry/iNat_observations_taxonomy?user_id=pisum&taxon_id=47120&place_id=18) functions.