note: I don't have that game installed.. D:
well.. windowed mode helps for seeing the pattern better, but it may affect your positioning precision (for other patterns, for example. PoFV being another example

); perhaps, for that red knives section, you should dodge the first streams, place yourself at a clear space and then look at the space between the boss and yourself (where you can determine the path of the knife streams and still have a bit of sight of your ship, at least on Youtube :p), and move without looking at your character (perhaps this section is meant to test how good your eye-to-hand coordination is?); it seems that if you try to concentrate around your ship, you won't have enough time to dodge on reaction.
Maybe there won't be much to be worried about on that part, since you don't need to concentrate on all streams but 3 at most (the one that may hit you, and the other adjacent 2; you'll want to be in the clear spaces between 2 streams).. if you can mentalize the fast and the lingering knives (you dodge the former, and avoid coming towards the path of the latter) and follow their flow fast enough and react accordingly.. you may be able to do it
