Controversial take:
Its okay to read a modernized distillation of authors like Marx and Lennin. What I've read of Lennin... is very "in the moment". Dude makes constant references to shit going on like you're already aware of it. So either you read past it hoping that later context will make things make sense or you stop and look up what some group/newsletter beef was going on before returning to the text I was wanting to read.
English translation of Marx's Capital may not have gone through much editing and I spent so much time trying to parse sentence structure to weed out the "extra" stuff or reordering entire paragraphs to remove all the comma splices that I had to stop.