1) The Hyperspace is not the warp, so no demonic problems.
2) The Astronomican has limited range. And it's already reached.
3) The Star Wars Ship explode often because in Star Wars the weapons are powerful.
4) The Star Wars blaster is more powerful than Imperium lasgun. Remember the sandcrawler.
5) Against the Titans, the Republic and Empire would use thermal missile: death for Imperium Titans.
To me, the technology of Empire is junk, they are only fortunate to fight against death races.
The only advantage of Imperium is Republic doesn't know the coordinates.