The Qing Court had established the foundation of its rule through violence and slaughter. That was manageable while it remained strong, but once it weakened, those who had surrendered because of the disparity in strength naturally turned against it. The so-called Three Feudatories, for example, had already begun to stir. The Qing Court sent envoys to mobilize their troops against Shen Fei, only for every one of them to die under mysterious circumstances.
This would never have happened before. After all, four of the so-called Eight Banners had now been wiped out. The remaining four had to defend the capital and naturally could not be dispatched rashly. Besides, even if they were sent out, the previous four had already been annihilated, so the outcome would likely be no different.
"Make a move. If they go mad at the end, it'll become troublesome."
While some people were beginning to stir, Shen Fei's operations continued. By then, his Shadow Clones had set up Flying Thunder God Techniques in major cities throughout the country. The reason they had not acted earlier was to launch everything at once. Their targets were naturally the Qing Court's key officials and generals across the nation, along with those rebels, surrenderers, spineless cowards, and the like.
This world did not need to proceed gradually as Great Tang had. As long as he first unified the realm through absolute force, he could slowly govern it afterward. That would certainly create plenty of trouble later, but as long as he remained, so-called trouble was nothing. At most, it would take time to deal with. As long as he did not change, no problems below would truly be problems.
The reason he was eager to unify the realm was partly because he did not want to waste too much time here.