In DA, I do about as you said.  However, after planetary improvements (and maybe ion engines) i do the first diplomacy tech and then Trade.  Trade has the benefit of the Eco Capitol and gives me something to trade to AIs that will get them to send me freighters that eco boost me and ease any early hostilities.

Even being superbreeder I'll still build recruitment centers or fertility clinics... This allows me to grow pop even faster as well as maxing out planets population.

Further, it will delay the early bancrupty. In order to prevent this you should leave your planets empty with the exception of a starport, and maybe make usage of bonus tiles etc pp, taking research/production simply from the colony building. (I'm talking about the stage of colonization)

Now these aforementioned buildings do have next to no maintenance and are fairly cheap to build and help with that which is most important in the game - population. (population is in essence the basic driver of the whole game)

The social production that is used for them is not lost - because you can overbuild them with other buildings and most of the time their cost is taken into the equation (sometimes not, always check that out by lokking at the "instant buy" option - but generally speaking, the new building should be more expensive than the inital one [otherwise you'd get a negative value)

You also want to research farms early (as superbreeder).

Generally everything that yields racial innate bonuses - and don't trade them to the AIs. As well as don't trade diplo techs or weapons.

About freighter I have some mixed feelings. The cash income fromt hem is only recognizable in the very beginning or if a route does last over the whole map for quite some time, but this doesusually not happen. And in early stages of the game I'd rather build a new colony ship instead of a freighter. What is ok is trade for AI scouts and upgrade thme into longrange freighters, will save some time too cause their usually already far away.

Focus alot on research and economy. Without these two military production is worthless. Build military according to what the AIs are doing. Don't fall back, try to be at 60%-100% of MMR, if races try to bribe you this is very bad.

Let the AIs attack themselves, select enemys carefully and if doing so, conquer them fastly.

This is not about the Torians but the regular races I'm saying that because I got the impression that some of U thought that. Every time I play I don't worry about population untill I fill up my planets. That would work unless your the Yor or Thalabs. I  still would utilize my super breeder if I was Thalans by keeping my morale at %100. For the most part don't spend more than 13 turns on a tech. Unless your Torians or a nonstandardn tech I would recommend not worrying about morale untill your running out of money. If your the Torians though the entertainment network is easily buildable but for the other morake building it takes to long to build in the early part of the game. So research Healing pools. Otherwise I wouldn't worry about morale untill I run out of money. The most inportant efect of flat rate bonuses R seen at the beginning of the game. I wouldn't worry about the Ion engine Untill after other civilizations R stealing planet s U want or untill after the planets R to far apart and it takes the colony ships to long time to reach them. or Untill U find resources. A lo of colony ships will work in the beginning of the game instead of worry about cheap fast ships I wouldn't worry about Xeno communications untill I meet someone I wouldn't worry about terraforming techs untill I use my planet tiles I wouldn't worry about weapons untill the Ai starts threatening me I would trade with weapons techs though these R easy to replace and the computer r not as good at building ships as u Planetary inprovements is a real good start the next important tech is military production more colony ships the better and you may have to get constructors built I like to go for Sensors when I get the first chance The more survey ships u have the more stuff u get before the Ai gets them after military productionion economics moral factories research and then diplomacy U may consider a different approach making diplomacy a higher importance if U don't have the techs U don't have anything to trade include what I said about farming terraforming weapons and morale in the equation when U have your fill of planets then worry about freighters lets talk about sensors when my range needs to be extended is when I WORRY About life support sensors engines and miniturization u may have to worry about life support sensors engines except when the Ai has minuterization and hull techs if U don't have enough planets after U run out of room theres always extreme planets after the colonization rush is when U want to consider your soecial planets like production technology and population this is the only time U have to worry about a technological capital now its time to research advanced computing and depending on the tech tree other techs too

again planets and infustructure there is not a such thing as not enough time even though I said that remember if U attack the a;tarians or the drath they can get allies easier I am going to say that this is the second time I did this and it didn't turn out right so u should probably read Maidens post first