Recommendation is to read it at a steady pace but not as fast as you can. Read a chapter or a large section, then take a break with some related content like a lecture about the same topic. It’s good to cement the same ideas in multiple ways and not get your brain fried by reading a textbook straight through. It took me like 2 years to finish volume 1, and that was a small price to feel grounded for years afterward
Edit: personally I think it should be read sequentially though. Start with chapter 1. While Marx himself admitted the first chapter (the law of value) was not strictly necessary to understand exploitation, it’s still very useful from an expository and theoretical standpoint. And certainly you need that background to understand the more advanced stuff to later extend it to modern finance capitalism.