As you keep reading, your pace of digesting books automatically becomes faster. At least that's what I observed in my reading.

I alsk believe that reading speed should not be increased forcefully. Let reading be like a stream so that the thoughts can flow spontaneously into the mind.

Yes, you need to always keep in mind that which book or content is just here to read. Like when upu read news and z story, you can read them rapidly. But the same can't be done for opinions and ideas.

I follow Francis Bacon's Famous quote from Of Studies