Since I can't post in the pc do to internet problems I can't give the exact quotes showing the scenes, but basically with pure guts (willpower) and reactive evolution Shia become able to destroy space with her attacks (with big aoe) so that probably take care of the danmaku, she similar create big shockwaves that can casually destroy a forest so they problably will also help against danmaku. Also, her attacks damage directly the soul.
Her hammer and pocket world also have inside seven divine spirits which control aspects of nature (and that are probably abstracts in nature since they are personifications of nature itself and certain fairies made then sound similar to apparition gods). Soare is the personification of the sun so she control fire, heat and light, she could compite with the concentred sun lasers of Hajime (which each have a sun inside them) so her AP output would problably be tier 5 and her heat should also be pretty high. Barachu control ice, cold, and zero absolute. Udar control lightning and storms. Meeres control water. Oros control the earth. Laila control darkness, she gives status effects and at least her attacks are homing (don't know if the other divine spirits can also do homing attacks). And Enti control the wind of the world. They should also help a lot against the danmaku and the effects of several attacks.
She have a automatic precog that ñet her see 2 seconds in the future without cost and a automatic precog that activate when her life is in danger, she futhermore as Pegasus said before have a actively precog that can even let her see months in the future if she concentrate enough, the active precog use a lot of magic power but since this Shia have infinite magic power that isn't a problem. Also, even without her precog her instincts let her detect things even before they happen (she even reacted to several instantly teleportations while slowed to the point of appear in slow motion do to time manip of the other side), and her battle instinct make her move before she even think in do so.
Her reactive evolution also let her grow a lot in moments, her strength and speed increase every second and when facing a opponenr she can grow in a short time to the point of be much superior to the other side, for example, in her fight against Udar he was blitzing her to the point she needed to dodge with precog and pure instinct and even then she was greatly injured, she instead of use a higher level of strengthening to blitz him instead endured and after a bit her base speed grew to the point that she blitzed him.
And she also can strengthen herself instantly without any problem with higher levels of body strengthening, which would make her turn 5-C, in said states just her natural pressure already violently shook the world.
Again, I can't show quotes do to be in phone but most of the things said above are in the profile so you can read it, specially the after stories key. Pegasus could also give more info if necessary.