its not too bad. a little force lightning seems to do a pretty decent job, as does grip if you have it maxed since you can grab more than one TIE at a time. this wouldn't be too bad if they spaced out the waves of TIE's a bit more so as to give you more time to get the SD into a low enough position.
still, it almost seems as if this section was almost too difficult.
See the struggle of the faithless lot as they negate their time
How low to sink to the depths of their frame of mind