the access rate of the plextor does seem slower, than my other burner (ricoh 7040a, very old) as well as my regular ROM readers. but you should not be using your burner to read as much as you should be using your readers to read (it wears out the mechanisms).
and the burner, 12x10x32, supports burn-proof technology which means the burning laser stops burning if there is a buffer underrun (maker of "coasters"😉. then restarts when the buffer is no longer empty. I have yet to actually see it in action though (which is a good thing).