Is Having Small Sectors Feasible?

[SacremPyrobolum]

I have a fairly large empire of 300 pops, and I had to recently compartmentalize my seven sectors into four because in addition to the slaves and abolitionists I could not keep up with all the separatists.

But now I have discovered terraforming and have started converting planets which will lead to a ton of new colonies and I don't want to have such powerful sectors.

So is there a way to deal with lots of factions? Any way to do so permanently?

And how the Hell do I deal with malcontent slaves and abolitionists?

 

[XRW]

Slaves are stupid. To much micro. Unless you are into the whole evil bastard thing, there is no point having them. Rebellions are not hard to put down with troops and regulated slavery reduces faction strength considerably.