I generally upload in batches of 20-40 photos.
See this tutorial, it’s the method I use to quickly get GPS data.
You can also pin locations in the web uploader: https://www.inaturalist.org/pages/video+tutorials#add_web
If nothing that the CV suggests looks good, or if I know the ID is tricky, I’ll just ID it at a high level (Insects, Dicots, etc) and upload it.