Well, pretty much, I take the planet next to me, and then I get hit by the first wave, which is ~500-1000 ships. Which swamps my defenses. On 8.3 or higher, that first wave normally sweeps through my ships and turrets, and kills me. Another time I took two planets before getting hit by the first wave, and that was enough to make the 500-1000 ships be mark II instead of mark I. That bowled me over crazy fast.
On 8.0, I was able to hold out long enough to build up some more ships, and then after I took a few more planets, the rest of the game was suddenly very easy. For the most part, the only way I was able to survive waves in the 8.0 game was to build spider turrets, and play a game of "chase after the rebuilt command station" by making a bunch of colony ships and just rebuilding the station on the other side of the system whenever it blew up. That kept them away from my home world, and after a while the spider turrets had them all frozen in place.
I have the factory rally point at a wormhole, and in FRD mode. I normally just make tractor turrets, and make ships instead of gun turrets. Are the MLRS or basic turrets stronger then basic fleet ships? If so, I'll make them instead. Maybe I should research Grav turrets right from the start, instead of using tractor turrets....
But I still find it odd that the start would be so much harder then the rest of the game. First 30 minutes of 8.0.. Super hard.... Most recent hour of same 8.0 game... Super easy, just steamrolling the AI.