https://paperswithcode.com/ is arguably the best source and overview of all the research. Its also (somewhat) unbiased (owned by Meta), not being an SEO-optimised company blog.
:-)
So on average probably 50 pages an hour.
With practice, that's entirely reasonable.
Without practice it's a lot.
Reading technical literature is a skill that develops over time. At first it goes slow. Then it gets normal. At first it might take an hour to read a 12 page paper. After a few months, fifteen minutes becomes enough to read a paper and make a cup of coffee.
BeIT-3 for example.
Edit: Everything tagged with AI/ML