reading is the most important skill you need to have if you are in some professional program. Not just passive reading, but active critical reading. Its tough, something that should be developed from childhood. I did not, so it takes me time to read the amount of text that I have to.
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You can start reading a para with full on concentration quickly in your heart or in your mouth, trying to remember keywords as you proceed. As you finish the para, spend few seconds to quickly recall without looking at the text what the para talked about. Then move on to next para. By doing that, I hope you can remember what you actually read. If the paras are filthy long, break them down into 3-4 lines.