I've been taking LR sections untimed and generally get between -0 and -2. Depending on the overall difficulty of the section I usually take between 35-45 minutes. However, when I take timed practice tests my accuracy goes down. I notice that many of the questions I missed were because I overlook certain details that would've clued me into the right answer, and on blind review I usually catch all of these errors. Any tips as to how one should generally go about building up their speed?

I've noticed lately that my accuracy on the arts RC passages (art movements, literature, architecture, etc.) tends to be lower than my accuracy on all the other types. My best explanation for this is that I simply have a harder time absorbing and comprehending the information presented in these passages due to having had little exposure to the subject matter (I'm majoring in math and philosophy). It's taking too much brains-space to try and read for structure as well as keeping details in mind for those questions that ask for specifics (I scan the questions before reading the passage). I think reading some literature similar to those arts passages might help with this problem by giving me more exposure. Does anyone have recommendations as to where I could start to look?

Taking the LSAT in August btw