That's okay because the canon has said nothing on why ar all.
It explains why Kira could take the risk of warping up to the Bajoran sun to stop the runnabout. and why sometimes it doesn't work.
One thing is for sure...I think Klingon ships are prone to the same filed snag because we've seen them do just about everything they want to around a sun. Then a gain we can assume their drives are far less powerful as they aren't better than warp 8