I've been using evince to open PDFs. But for larger PDFs it is quite laggy, for selecting the text and stuff like that. Is this just a limitation of my computer, or are there faster alternatives to evince?
I used to use the famous Zathura for a long time, but it's really minimal. Sioyek is an incredible pdf reader so overlooked.
Amongst a lot of other things, it lets you:
quickly preview or jump to figures/references/equations/tables… (even if the PDF does not have links)
search paper names in any search engine you like (defaults are google scholar and library genesis) by middle clicking on their name or using keybindings
mark locations (using lower case for local mark and upper case for global mark) or create bookmarks for quick navigation
highlight text
save annotations in a local database or embed them in a new version of the PDF file to share them with others